Natural Opal Mineral Specimens: Boulder Opal Specimens, Common Opal Specimens, and Precious Opal Mineral Specimens & Lapidary Rough
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Opal Mineral Specimens:
Natural Boulder Opal Specimens, Common Opal Rough, and Precious Opal Specimens

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Natural Common Opal Specimens

Item: opam156x
available in several small sizes (please see below)
These genuine opal specimens were mined in the USA
These natural opal specimens have thick layers of common opal in shades with white, tan, and pale yellow-green (completely natural untreated colors) with large areas of very nice cabochon gem or carving grade. The photo at left is viewed under incandescent light. We have these natural opal specimens available in small to medium sizes that are perfect for mineral collections, as samples for classroom study, and for metaphysical use. Please see below to order.

2 inch Natural Common Opal Specimens

Item: opam156c
Price: $2.50

2.5 inch Natural Common Opal Specimens

Item: opam156d
Price: $4.50

3 inch Natural Common Opal Specimens

Item: opam156e
Price: $7.50

Pink and White Opal Specimen, Lapidary Grade

This unique item is sold.
Item: opam165
0.95 Lbs
4.5" x 3.4" x 3.2" (114mm x 86mm x 82mm)
Price: $28.50
This piece of natural opal has a mottled brecia pattern of white, light pink, and purple-pink colors. The older exposed surfaces of this natural opal rough specimen are oxidized to white, brown and gray colors. Freshly broken surfaces reveal the beautiful white & pink colors inside. It is fine lapidary grade and would yield a single large carving or a 1.8 inch diameter sphere, with plenty of material left over for cabochons, etc.

Pink and White Opal Specimen


Item: opam167
3.8 Lbs
8" x 5" x 3.5"
Price: $114.00
This piece of natural opal has a mottled brecia pattern of white, light pink, and red-pink colors. The older exposed surfaces of this natural opal rough specimen are oxidied to white, brown and gray colors. Freshly broken surfaces reveal the beautiful white & pink colors inside. It is fine lapidary grade and would yield a single large carving or several 2.5 inch diameter spheres, with plenty of material left over for cabochons, etc.

Pink and White Opal Specimen, 36 pounds


Item: opam168
36 Lbs
15.5" x 9" x 8"
Price: $466.20
This large boulder of natural opal has a mottled brecia pattern of white, light pink, and red-pink colors. All of its surfaces but one are older exposed surfaces that have oxidized to white. There is one freshly broken surface across the top that reveals the beautiful white & pink mottled colors inside. Most of its interior is fine lapidary grade with crust on some surfaces. It would yield a single large amazing carving, or a couple of 4 to 5 inch diameter spheres, with plenty of material left over for cabochons, etc.

Boulder Opal Mineral Specimen

This unique item is sold.
Item: opam155
0.2 Lbs
2" x 1.7" x 1.4"
( 52 x 44 x 35mm)
mined in Queensland, Australia
Price: $34.50
This piece of 100% natural boulder opal rough consists of brown clay-ironstone matrix with thin seams of precious opal. Within the opal there are areas with intense purple-blue colors. This mineral specimen is completely natural boulder opal, with no dyes, glues, laminations or fillers.

Boulder Opal Specimen


Item: opam162
This natural boulder opal weighs 0.25 Lbs
Boulder opal dimensions: 2.3" x 1.7" x 1" (59mm x 44mm x 26mm)
Discovered in Queensland, Australia
Price: $132.50
This polished piece of natural boulder opal consists of brown clay-ironstone matrix with thin seams of precious opal on its top and bottom surfaces. Within the opal there are areas with natural flashes of green, blue and purple colors! Other than its polished surfaces, this mineral specimen is completely natural boulder opal, with no dyes, glues, laminations or fillers. See also a back-view photo.

Boulder Opal Specimen


Item: opam163
This natural boulder opal weighs 0.2 Lbs
Measument: 1.8" x 1.7" x 1.2" (45mm x 44mm x 31mm)
Found in Queensland, Australia
Price: $134.50
This polished piece of 100% natural boulder opal consists of brown clay-ironstone matrix with a thin seam of precious opal on its upper surface. Within the opal there are areas with natural flashes of bright green, blue and reddish-orange! Other than some polished surfaces, this mineral specimen is completely natural boulder opal, with no dyes, glues, laminations or fillers.

Boulder Opal Mineral Specimen


Item: opam144
This boulder opal specimens measure: 2.6" x 2.2" x 1.5"
( 67 x 57 x 37mm )
Mined in Queensland, Australia
Price: $112.50
This piece of natural boulder opal consists of brown clay-ironstone matrix with a thin seam of precious opal. Within the opal there are areas of intense flashes of green, and some blueish-purple colors. Other than its polished surfaces, this mineral specimen is completely natural boulder opal, with no dyes, glues, laminations or fillers. The photo at left shows a close-up photo, see also a full-view photo.

Boulder Opal Mineral Specimen


Item: opam145
This genuine boulder opal is 3.8" x 1.5" x 1.1"
( 98.5 x 39 x 28mm )
Mined in Queensland, Australia
Price: $184.50
This specimen of natural boulder opal rough consists of brown clay-ironstone matrix with a thin seam of precious opal. Within the opal there are areas with intense flashes of green, orange-red and some blueish-purple colors. Other than its polished surfaces, this mineral specimen is completely natural boulder opal, with no dyes, glues, laminations or fillers. The photo at left shows a close-up photo, see also a full-view photo.

Welo Opal Gemstone


Item: opag144_Welo-crystal-opal-gemstone
This natural Ethiopian opal gemstone weighs 0.95 carats
Welo Opal Gem Dimensions: 11.4mm x 7.0mm x 3.4mm deep
This natural precious opal gem was found in the Welo Province of Ethiopia
Price: $77.90
This unique Welo opal gemstone was ground & polished into a pear shaped cabochon from natural crystal opal rough that was mined in Ethiopia. This opal gem is completely natural with no dyes, no glues, no laminations, and no treatments of any kind. This superior quality opal gem is flawless with no imperfections. It is transparent with natural color play inside. Transparent opals with color play are also known as crystal opal gems. This superior quality Welo opal gemstone has flashes of green, orange and red color play inside!
The unique opal gemstone you see displayed at left is the actual one you will receive.

Ethiopian Opal Gemstone


Item: opag158_Ethiopian-opal-gemstone
This natural Ethiopian opal gemstone weighs 1.04 carats
Welo Opal Gem Dimensions: 8.2mm x 5.9mm x 4.6mm deep
This natural precious opal gem was found in the Welo Province of Ethiopia
Price: $98.80
This unique Ethiopian opal gemstone is a natural solid opal gemstone. It was ground & polished into this oval shaped cabochon gem from natural crystal opal rough that was mined in Ethiopia. This opal gem is completely natural with no dyes, no glues, no laminations, and no treatments of any kind. This superior quality opal gem is flawless with no imperfections. It is transparent with natural color play inside. Transparent opals with color play are also known as crystal opal gems. The photo at left shows a side view, see also a top view of this superior quality natural Ethiopian opal gemstone. This unique Welo opal gemstone has flashes of predominantly green and blue color play with some orange and red.
The superior quality opal gem you see displayed at left is the actual one you will receive.

Ethiopian Opal Gemstone


Item: opag159_Ethiopian-opal-gemstone
This natural Ethiopian opal gemstone weighs 1.53 carats
Welo Opal Gem Dimensions: 9.2mm x 7.2mm x 5.0mm deep
This natural precious opal gem was found in the Welo Province of Ethiopia
Price: $145.35
This unique Ethiopian opal gemstone is a natural solid opal cabochon gem. It was ground & polished into this tall oval shaped cabochon from natural crystal opal rough that was mined in Ethiopia. This opal gem is completely natural with no dyes, no glues, no laminations, and no treatments of any kind. This superior quality opal gem is flawless with no imperfections. It is transparent with golden body color and with natural color play inside. Transparent opals with color play are also known as crystal opal gems. The photo at left shows a side view, see also a top view of this superior quality natural Ethiopian opal gemstone. This unique Welo opal gemstone has flashes of predominantly green and blue color play.
The superior grade opal gem you see displayed at left is the actual one you will receive.

Ethiopian Opal Gemstone


Item: opag160_Ethiopian-opal-gemstone
This natural Ethiopian opal gemstone weighs 1.82 carats
Welo Opal Gem Dimensions: 9.4mm x 7.5mm x 6.7mm deep
This natural precious opal gem was found in the Welo Province of Ethiopia
Price: $172.90
This unique Ethiopian opal gemstone is a natural solid opal gem. It was ground & polished into this hi-dome oval shaped cabochon from natural crystal opal rough that was mined in Ethiopia. This opal gem is completely natural with no dyes, no glues, no laminations, and no treatments of any kind. This superior quality opal gem is flawless with no imperfections. It is transparent with natural broadflash color play inside. Transparent opals with color play are also known as crystal opal gems. The photo at left shows a side view, see also a top view of this superior quality natural Ethiopian opal gemstone. This unique Welo opal gemstone has broad flashes of green and blue color play.
The natural opal gem you see displayed at left is the actual one you will receive.

Fine Ethiopian Opal Gemstone

This unique item is sold.
Item: opag161_Ethiopian-opal-gemstone
This natural Ethiopian opal gemstone weighs 1.63 carats
Welo Opal Gem Dimensions: 11.1mm x 8.5mm x 3.7mm deep
This natural precious opal gem was found in the Welo Province of Ethiopia
Price: $195.60
This unique Ethiopian opal gemstone is a natural solid opal gem. It was ground & polished into this oval shaped cabochon from natural crystal opal rough that was mined in Ethiopia. This opal gem is completely natural with no dyes, no glues, no laminations, and no treatments of any kind. This superior quality opal gem is flawless with no imperfections. It is transparent with natural color play inside. See also another view of this natural Ethiopian opal gemstone with the light shining from a different angle which completely changes the color patterns. This unique Welo opal gemstone has fine color play with flashes of green, orange, red and blue color play.
The unique opal gem you see displayed is the actual one you will receive.

Fine Ethiopian Opal Gemstone


Item: opag146_Welo-crystal-opal-gemstone
This natural Welo opal gemstone weighs 3.06 carats
Ethiopian Opal Gem Dimensions: 10.2mm round x 6.5mm deep
This natural precious opal gem was found in the Welo Province of Ethiopia
Price: $367.20
This unique Welo opal gemstone was ground & polished into a round cabochon shape from natural crystal opal rough that was mined in Ethiopia. This opal gem is completely natural with no dyes, no glues, no laminations, and no treatments of any kind. This superior quality opal gem is flawless with no imperfections. It is transparent with natural color play inside. Transparent opals with color play are also known as crystal opal gems. This fine quality Welo opal gemstone has flashes of wonderful green with some red color play inside as you turn the gem. See another view of this superior quality natural Welo opal gemstone.
The fine opal gemstone you see in these two photos is the actual one you will receive.

Fine Ethiopian Opal Gemstone


Item: opag162_Ethiopian-opal-gemstone
This natural Ethiopian opal gemstone weighs 3.38 carats
Welo Opal Gem Dimensions: 11.0mm square cushion x 5.5mm deep
This natural precious opal gem was found in the Welo Province of Ethiopia
Price: $405.60
This unique Ethiopian opal gemstone is a natural solid opal gem. It was ground & polished into this square cushion shaped cabochon gem from natural crystal opal rough that was mined in Ethiopia. This opal gemstone is completely natural with no dyes, no glues, no laminations, and no treatments of any kind. This superior quality opal gem is flawless with no imperfections. It is transparent with natural color play inside. The photo at left is a side view. See also a top view of this natural Ethiopian opal gemstone. This unique Welo opal gemstone has fine color play with flashes of red, orange and green color play.
The unique opal gem that you see displayed is the actual one you will receive.

Fine Ethiopian Opal Gemstone


Item: opag147_Welo-crystal-opal-gemstone
This natural Ethiopian opal gemstone weighs 3.65 carats
Crystal Opal Gem Dimensions: 14.8mm x 9.8mm x 5.0mm deep
This natural precious opal gem was found in the Welo Province of Ethiopia
Price: $438.00
This unique Welo opal gemstone was ground & polished into an oval cabochon shape from natural crystal opal rough that was mined in Ethiopia. This opal gem is completely natural with no dyes, no glues, no laminations, and no treatments of any kind. This superior quality opal gem is flawless with no imperfections. It is transparent with natural color play inside. Transparent opals with color play are also known as crystal opal gems. This fine quality Welo opal gemstone has flashes of wonderful green, orange and red color play inside as you turn the gem. See another view of this superior quality natural Ethiopian opal gemstone.
The fine opal gemstone you see in these two photos is the actual one you will receive.

Very Fine Ethiopian Opal Gemstone


Item: opag163_Ethiopian-opal-gemstone
This natural Ethiopian opal gemstone weighs 6.51 carats
Welo Opal Gem Dimensions: 21.8mm x 8.8mm cushion shape x 6.2mm deep
This natural precious opal gem was found in the Welo Province of Ethiopia
Price: $943.95
This unique Ethiopian opal gemstone is a natural solid opal gem. It was ground & polished into this square cushion shaped cabochon gem from natural crystal opal rough that was mined in Ethiopia. This genuine opal gemstone is completely natural with no dyes, no glues, no laminations, and no treatments of any kind. This superior quality opal gem is flawless with no imperfections. It is semi-transparent with white body color and with natural color play inside in beautiful harlequin patterns! See also a side view of this wonderful Ethiopian opal gemstone. This unique Welo opal gemstone has very fine color play with flashes of predominantly red, orange and green color play.
The unique opal gem that you see displayed is the actual one you will receive.

Very Fine Ethiopian Opal Gemstone


Item: opag165_Ethiopian-opal-gemstone
This natural Ethiopian opal gemstone weighs 6.99 carats
Welo Opal Gem Dimensions: 24.8mm x 13.3mm pear shape x 5.0mm deep
This natural precious opal gem was found in the Welo Province of Ethiopia
Price: $1013.55
This unique Ethiopian opal gemstone is a natural solid opal gem. It was ground & polished into this drop shaped cabochon gem with a nice low profile (weighs very little for its size) from natural precious opal rough that was mined in Ethiopia. This genuine opal gemstone is completely natural with no dyes, no glues, no laminations, and no treatments of any kind. This superior quality opal gem has a fine quality finish. It is transparent with natural broadflash color play inside. As you move the light source slightly, flashes of very bright changing colors roll across its surface. See a photo of this natural Ethiopian opal gemstone with the light moved just slightly. See also a side view of this wonderful Ethiopian opal gemstone. This unique Welo opal gemstone has very fine and very bright color play with flashes of predominantly red, blue and green color play.
The unique opal gem that you see displayed is the actual one you will receive.

Extra Fine Ethiopian Opal Gemstone, 6.51 Carats


Item: opag164_Ethiopian-opal-gemstone
This natural Ethiopian opal gemstone weighs 6.51 carats
Welo Opal Gem Dimensions: 14.8mm x 14.5mm trangular shape x 8.4mm deep
This natural precious opal gem was found in the Welo Province of Ethiopia
Price: $1367.10
This unique Ethiopian opal gem is a natural solid opal gemstone. It was ground & polished into this triangular shaped cabochon gem from natural precious opal rough that was mined in Ethiopia. This genuine opal gemstone is completely natural with no dyes, no glues, no laminations, and no treatments of any kind. This collector quality gem is eye clean with a fine quality finish. It is semi-transparent with brown to gray body color and with natural color play in amazingly beautiful patterns on both its front and back surfaces! See a back-side view of this extra fine Ethiopian opal gemstone. See also a side view of this wonderful Ethiopian opal gemstone. This unique Welo opal gemstone has extra fine color play with flashes of red, orange, green and blue color play.
The unique opal gem that you see displayed is the actual one you will receive.

Extra Fine Ethiopian Opal Gemstone, 12.63 Carats


Item: opag166_Ethiopian-opal-gemstone
This natural Ethiopian opal gemstone weighs 12.63 carats
Welo Opal Gem Dimensions: 21.2mm x 17.5mm trangular shape x 7.9mm deep
This natural precious opal gem was found in the Welo Province of Ethiopia
Price: $2652.30
This unique Ethiopian opal gem is a natural solid opal gemstone. It was ground & polished into this triangular shaped cabochon gem from natural precious opal rough that was mined in Ethiopia. This genuine opal gemstone is completely natural with no dyes, no glues, no laminations, and no treatments of any kind. This collector quality gem is flawless with a fine quality finish! It is transparent with light golden body color and with natural broadflash color play in fantastic patterns on both its front and back surfaces! See a back-side view of this extra fine Ethiopian opal gemstone. See also a side view of this amazing Ethiopian opal gem. This unique Welo opal gemstone has extra fine color play with flashes of red, green, orange and blue color play.
The unique opal gem that you see displayed is the actual one you will receive.

Extra Fine Ethiopian Opal Gemstone, 21.75 Carats


Item: opag167_Ethiopian-opal-gemstone
This natural Ethiopian opal gemstone weighs 21.75 carats
Welo Opal Gem Dimensions: 28.8mm x 18.0mm pear shape x 9.5mm deep
This natural precious opal gem was found in the Welo Province of Ethiopia
Price: $4893.75
This unique Ethiopian opal gemstone is a natural solid opal gem. It was ground & polished into this drop shaped cabochon gem from natural precious opal rough that was mined in Ethiopia. This genuine opal gemstone is completely natural with no dyes, no glues, no laminations, and no treatments of any kind. This amazing collector gem is flawless with a fine quality finish! It is transparent with natural broadflash color play in wonderful unique patterns that move and change colors as you turn the gem! See another view of this extra fine Ethiopian opal gemstone. See also a side view of this amazing Ethiopian opal gem. This unique Welo opal gemstone has extra fine broadflash color play in red, orange and green colors.
The unique opal gem that you see displayed is the actual one you will receive.

Extra Fine Ethiopian Opal Gemstone, 29.23 Carats


Item: opag168_Ethiopian-opal-gemstone
This natural Ethiopian opal gemstone weighs 29.23 carats
Welo Opal Gem Dimensions: 24.4mm x 19.8mm oval shape x 12.7mm deep
This natural precious opal gem was found in the Welo Province of Ethiopia
Price: $6576.75
This unique Ethiopian opal gemstone is a natural solid opal gem. It was ground & polished into this oval shaped cabochon gem from natural precious crystal opal rough that was mined in Ethiopia. This genuine opal gemstone is completely natural with no dyes, no glues, no laminations, and no treatments of any kind. This is a truly amazing collector gem; it is flawless and has a fine quality finish. It is transparent with a slightly blue-ish body color and with natural broadflash color play in fantastic unique patterns that move and change colors as you turn the gem, and the extra fine color play is present on both the front and back surfaces! See a back view of this extra fine Ethiopian opal gemstone. See also a side view of this amazing Ethiopian opal gem. This unique Welo opal gemstone has extra fine broadflash color play in red, orange, green and blue colors.
The unique opal gem that you see displayed is the actual one you will receive.

Boulder Opal Gemstone


Item: opag150_boulder-opal-gemstone
This natural boulder opal gem weighs 31.02 carats
Boulder Opal Gem Dimensions: 1.1 x 0.7 x 0.3 thick
(28mm x 16.5mm x 8mm)
Price: $112.50
This unique boulder opal gemstone was ground & polished into a free-form cabochon shape from natural boulder opal rough that was mined in Australia. This boulder opal gem is completely natural with no dyes, glues, laminations or fillers. There is lots of opal in this gem, the opal is intergrown with dark brown clay-ironstone matrix, and within the opal there are areas with beautiful green and blue-purple colors as you turn the piece. It makes a great specimen of natural Australian boulder opal just as it is, although this genuine boulder opal gem would make a wonderful boulder opal jewelry design as well.

Ex-Large Boulder Opal Gemstone, 197.42 carats!


Item: opag142 _boulder-opal-gemstone
This genuine boulder opal gem weighs 197.42 carats
Boulder Opal Gem Dimensions: 2.4" x 1.7" x 0.3" thick
(62mm x 44mm x 8mm)
Price: $241.25
This unique boulder opal gemstone is 2.4 inches long! It was ground & polished into a free-form cabochon shape from natural boulder opal rough that was mined in Australia. This boulder opal specimen has a relatively thin flat shape. It is completely natural with no dyes, glues, laminations or fillers. The boulder opal has a dark brown clay-ironstone matrix, and within the opal there are areas with intense green and blue-purple flashes as you turn the piece. It makes a great specimen of natural Australian boulder opal just as it is, although ths genuine boulder opal gem would make a wonderful boulder opal gemstone jewelry design as well. It would also make a fantastic "pocket rock" of natural boulder opal! See also a full-view photo and a back-view photo.

Precious Opal Shell Fossil


Item: opag132
43.25 carats
34 X 30 X 11 mm
Mined in Australia
Price: $280.00
This genuine opal fossil clam mined in Australia contains multicolors of crystal opal in predominately greens, blue through violet, to purple colors within a slightly bluish body color. The precious opal shell thickness is from 2 MM to over 5 MM thick covering a sandstone center. It is an excellent specimen as is but could be polished to bring out the colors even more.

Brazilian Precious Opal Pear Shape


Item: opag151
Genuine Brazilian opal cabochon gem weighing 11.62 carats
Opal Gemstone Dimensions: 28 X 16 X 4 mm
Mined in Brazil
Price: $313.74
This genuine solid crystal opal mined in Brazil contains multi-colors of crystal opal in predominately greens and blues through violet, to purple colors within a translucent, slightly blue-ish body color. The precious opal is fashioned in a double cab style with some variance of color play from side to side. See also another view of this genuine Brazilian opal gemstone. Brazilian opal is said to contain less water and is even more stable than Australian opal.

Brazilian Precious Opal Low Dome Cushion Shape


Item: opag152
4.94 carats
14.3X 111.5X 4.1 mm
Mined in Pedro II Piaui , Brazil
Price: $258.44
This genuine solid crystal opal mined in Brazil contains multicolors of semi crystal opal in predominately greens and blues through violet, to purple colors with small amounts of yellow and orange within a transparent to translucent, slightly milky white body color. The precious opal is fashioned in a double cab style with some variance of color play from side to side. See also another view Brazilian opal gemstone. See also another view photo.Brazilian opal is said to contain less water and is even more stable than Australian opal.

Brazilian Precious Opal Low Dome Cushion Shape


Item: opag153
4.05 carats
14.1X 11.9X 2.9 mm
Mined in Pedro II Piaui , Brazil
Price: $222.75
This genuine solid crystal opal mined in Brazil contains multicolors of semi crystal opal in greens and blues through violet, to purple colors with varying amounts of yellows reds and orange within a transparent to translucent, nearly crystal clear body color. The precious opal is fashioned in a double cab style with some variance of color play from side to side. See also opposite side view photo. Brazilian opal is said to contain less water and is even more stable than Australian opal.

Brazilian Precious Opal Low Dome Oval Shape


Item: opag154
3.80 carats
13.0X 10.5X 3.5mm
Mined in Pedro II Piaui , Brazil
Price: $209.00
This genuine solid crystal opal mined in Brazil contains multicolors of semi crystal opal in greens and blues through violet, to purple colors with minor amounts of yellows reds and orange within a transparent to translucent, nearly crystal clear body color. The precious opal is fashioned in an oval cab style with variance of color play at different angles. See also another view photo. See also another view photo. Brazilian opal is said to contain less water and is even more stable than Australian opal.

Brazilian Precious Opal Low Dome Near Square Shape


Item: opag155
3.62 carats
11.0X 11.2X 3.6mm
Mined in Pedro II Piaui , Brazil
Price: $188.24
This genuine solid crystal opal mined in Brazil contains multicolors of semi crystal opal in greens and blues through violet, to purple colors with minor amounts of yellows reds and orange within a transparent to translucent, nearly crystal clear body color. The precious opal is fashioned in near square cushion shape double sided cab style with variance of color play on each side at different angles. See also another view photo. See also another view photo with florescent lighting. See also another view photo. Brazilian opal is said to contain less water and is even more stable than Australian opal.

Australian Natural Solid Dark Crystal Opal Cabchon


Item: opag156
11.76 carats
22.7X 17 X 4.5 mm oval cab
Mined at Coober Pedy, Australia
Price: $964.32
This beautiful, genuine dark crystal opal cabochon gem mined in Australia is very nicely fashioned and polished. It has a translucent body color of a light tan with a beautiful,multi-color, pin-fire pattern throughout the gem. The specks and flashes of color penetrate right through to most of the back side. This is a solid opal, not a doublet. See also another view photo. See also another view photo. The photographs shown were taken under a combination of florescent and incandescent (bulb) light.

Mexican Fire Opal Cabchon 2.10 carats


Item: opag157
2.10 carats
10.0 X 8.2. X 4.6 mm oval cab
Mined in Mexico
Price: $168.00
This is a gorgeous deep orange natural color Mexican fire opal with some play of color in various tones of yellows, orange and greens. This gem is completely eye-clean and is well fashioned. It is a nice sized gem at 2.10 carats and is fashioned out of facet grade material. See also another view photo. The photo was taken under incandescent (bulb) light.

Ethiopian Opal Gem Rough Specimen, 24.52 carats


Item: opal104-ethiopian-opal-rough
this genuine Ethiopian opal rough weighs 24.52 carats
1.1" x 1" x 0.55" thick
(28mm x 25.5mm x 14mm)
mined in Ethiopia
Price: $148.08
This unique piece of genuine Ethiopian opal gem rough is completely natural, just as it was found in the earth! Within the opal there is very beautiful color-play in flashes of green, yellow, red and orange colors as you turn it. The photo at left was taken under incandescent light. It shows an area with a fresh surface break which nicely reveals the color-play inside. The remaining surfaces are mostly covered with a very thin layer of rough opaque opal. This untreated opal specimen makes a great mineral specimen of natural Ethiopian opal just as it is. This precious opal rough specimen could also be set into jewelry just as it is to make a wonderful Ethiopian opal jewelry item as well. There is a little matrix on some surfaces, and there are several large internal cracks inside separating some small but completely clean areas that could be cut into completely clean Ethiopian opal gemstones weighing from 1/2 to one carat each with good color-play. See also a side view photo.

Ethiopian Opal Gem Rough Specimen, 12.56 carats


Item: opal102-ethiopian-opal-rough
this genuine Ethiopian opal rough weighs 12.56 carats
0.8" x 0.6" x 0.4" thick
(20mm x 15mm x 10mm)
mined in Ethiopia
Price: $198.00
This unique piece of untreated Ethiopian opal rough is completely natural just as it was found in the earth. Along one side there is a layer of very high grade opal with beautiful green, red, yellow and orange broad flashes of 100% natural colors. This lapidary grade opal layer would yield a single completely clean fine quality cabochon gem weighing over 4 carats. This genuine Ethiopian opal rough specimen has not been heated or treated in any way. The photo at left nicely shows the high grade opal layer along one side which makes up about 35% of the piece, and the milky opal layer with little to no color-play along the opposite side making up the remaining 65%. There is a very small amount of attached matrix. See also an opposite side view.

Ethiopian Opal Gem Rough Specimen, 11.70 carats


Item: opal106-ethiopian-opal-rough
This genuine Ethiopian opal rough weighs 11.70 carats
0.8" x 0.7" x 0.4" thick
(20mm x 18.5mm x 10mm)
Mined in Ethiopia
Price: $175.50
This untreated specimen of Ethiopian opal is completely natural, just as it was found in the earth. Over 90% of this high quality opal rough is completely clean inside, and the opal is transparent. Under incandescent light or sunlight it shows beautiful flashes of green, yellow and blue 100% natural colors here and there within its depths. Under less strong lighting, the colors are more subtle. These colors change as the light moves or as the piece is turned. This rare quality lapidary grade precious opal specimen would yield a single completely clean Ethiopian opal cabochon gem weighing 3.5 carats, or a completely clean free-form gem carving weighing even more. The photo at left shows a fresh surface break on one side which nicely shows the internal color-play under incandescent light. This beautiful precious opal specimen could be set in jewelry just as it is! There a small amount of matrix on some surfaces. See also a side photo.

Ethiopian Opal Gem Rough Specimen, 21.11 carats


Item: opal107-ethiopian-opal-rough
this genuine Ethiopian opal rough weighs 21.11 carats
1.25" x 0.8" x 0.5" thick
(31mm x 19mm x 12.5mm)
mined in Ethiopia
Price: $264.38
This untreated Ethiopian opal rough specimen is completely natural - just as it was found in the earth. The opal has no flaws inside, and in the upper part it has very fine color-play showing beautiful flashes of green, red, and orange natural colors. These colors change as the light moves or as the piece is turned. The lower part of the opal also shows some color-play when viewed under brighter lights. The photo at left was taken under incandescent light. It shows a fresh surface break which nicely reveals the color-play inside. The remaining surfaces are mostly covered with a very thin layer of opaque opal. This lapidary grade precious opal specimen would yield a single completely clean Ethiopian opal cabochon gem weighing 4.5 carats from the very high quality area in the upper part of the opal. This untreated Ethiopian opal specimen would look very nice if set into jewelry just as it is! There a small amount of matrix on the opposite side. See also a side view photo, and a back view photo.

Ethiopian Opal Gem Rough Specimen, 157.1 carats


Item: opal109-ethiopian-opal-rough
this genuine Ethiopian opal rough weighs 157.1 carats
1.5" x 1.3" x 1.1"
(38mm x 33mm x 28mm)
mined in Ethiopia
Price: $1885.20
This amazing specimen of untreated Ethiopian opal rough specimen is completely natural - just as it was found in the earth! This rare quality precious opal specimen has no cracks, and there is a very large flawless area inside weighing over 100 carats with fine color-play showing beautiful flashes of green, red, yellow, and orange natural colors. These wonderful colors change as the light moves or as the piece is turned. The photo at left was taken under incandescent light. It shows a fresh surface break which very nicely reveals the color-play inside. See also another view. Most of the remaining surfaces are covered with a thin layer of opaque opal and matrix. See also a side view photo, and a back view photo. This lapidary grade precious opal specimen makes a wonderful mineral specimen just as it is, although it would yield over 50 carats of completely clean Ethiopian opal cabochon gems with fine color-play! This untreated Ethiopian opal specimen is a spectacular natural opal mineral specimen!

Ethiopian Opal Gem Rough Specimen, 34.0 carats


Item: opal108-ethiopian-opal-rough
this genuine Ethiopian opal rough weighs 34.0 carats
1.1" x 0.8" x 0.8" thick
(28mm x 20mm x 20mm)
mined in Ethiopia
Price: $544.00
This untreated Ethiopian opal rough specimen is completely natural - just as it was found in the earth. There is a large clean area inside weighing over 20 carats with no flaws and with fine color-play showing beautiful flashes of green, red, yellow, and orange natural colors. These colors change as the light moves or as the piece is turned. The photo at left was taken under incandescent light. It shows a fresh surface break which nicely reveals the color-play inside. Most of the remaining surfaces are covered with a very thin layer of opaque opal. This lapidary grade precious opal specimen makes a wonderful mineral specimen just as it is, although it would yield 10-15 carats of completely clean Ethiopian opal cabochon gems with beautiful color-play. This untreated Ethiopian opal specimen would also look very nice if set into jewelry just as it is! There a small amount of matrix on the opposite side. See also a side view photo, and a back view photo.


This is the end of our page for Opal Mineral Specimens (boulder opal specimens and other natural opals).

See also our page displaying genuine opal jewelry designs including natural jelly opal jewelry and jelly opal necklaces set with 100% natural Ethiopian opal gemstones!

To see more opal photos, just select another item category from the table below. To see photos of another mineral variety, select any item category link in our Mineral Inventory & Factsheet Index.

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Last Updated: June 19, 2014
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