Tanzanite Mineral Specimen

Tanzanite Crystals and rough Tanzanite Specimens

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Tanzanite Mineral Specimens & Tanzanite Crystals

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Tsavorite with Tanzanite Mineral Specimen


Code: tsvm154
Natural tsavorite specimen weighing 107.2 carats
Tsavorite Garnet Specimen Dimensions: 2" x 1.1" x 0.6"
Mined in the Taita Hills of Kenya
Price: $68.50
This natural specimen of green tsavorite grossular garnet has a relatively thin flat shape. It was mined near the famous "Scorpion Mine" in the Taita Hills of Kenya. The upper surface of this specimen has semi-transparent tsavorite garnet with rich green natural color exposed as shown within pale blue-gray opaque tanzanite with some graphite.

Tsavorite Garnet Specimen with Tanzanite


Code: tsvm152
Natural tsavorite specimen weighing 178.5 carats
Tsavorite Garnet Specimen Dimensions: 1.8" x 1.6" x 0.8"
Mined in the Taita Hills of Kenya
Price: $81.50
This natural specimen of green tsavorite grossular garnet was mined near the famous "Scorpion Mine" in the Taita Hills of Kenya. The tsavorite garnet is semi-transparent with rich green natural color. The tsavorite formed within a matrix of pale blue-gray opaque tanzanite with graphite.

Tsavorite Garnet Specimen with Tanzanite


Code: tsvm151
Natural tsavorite specimen weighing 101.2 carats
Tsavorite Garnet Specimen Dimensions: 1.4" x 1" x 0.8"
Mined in the Taita Hills of Kenya
Price: $84.25
This natural specimen of green tsavorite grossular garnet was mined near the famous "Scorpion Mine" in the Taita Hills of Kenya. The tsavorite garnet is semi-transparent with very fine rich green natural color. The tsavorite formed within a matrix of graphite with some pale blue-gray opaque tanzanite surrounding the tsavorite.

Tsavorite with Tanzanite Mineral Specimen


Code: tsvm155
Natural tsavorite specimen weighing 158.9 carats
Tsavorite Garnet Specimen Dimensions: 1.5" x 1" x 0.9"
Mined in the Taita Hills of Kenya
Price: $102.50
This natural specimen of green tsavorite grossular garnet was mined near the famous "Scorpion Mine" in the Taita Hills of Kenya. There is semi-transparent tsavorite garnet with rich green natural color exposed within pale blue-gray opaque tanzanite with graphite.

Tsavorite Garnet Specimen in Tanzanite Matrix


Code: tsvm147
Natural tsavorite specimen weighing 163.3 carats
Tsavorite Garnet Specimen Dimensions: 2.5" x 1.2" x 0.7"
Mined in the Taita Hills of Kenya
Price: $108.50
This natural specimen of green tsavorite grossular garnet was mined near the famous "Scorpion Mine" in the Taita Hills of Kenya. The tsavorite garnet is semi-transparent with natural green color. The tsavorite formed within pale blue-gray opaque tanzanite matrix.

Tsavorite Garnet Mineral Specimen


Code: tsvm149
Natural tsavorite specimen weighing 268.4 carats
Tsavorite Garnet Specimen Dimensions: 1.8" x 1.6" x 1"
Mined in the Taita Hills of Kenya
Price: $134.25 (original price: $162.50)
This natural specimen of green tsavorite grossular garnet was mined near the famous "Scorpion Mine" in the Taita Hills of Kenya. The tsavorite garnet is exposed on the upper surface and is semi-transparent with natural rich green color and some tiny gem-grade areas. The tsavorite formed within pale blue-gray opaque tanzanite.

Tsavorite Garnet Specimen in Tanzanite


Code: tsvm148
Natural tsavorite specimen weighing 222 carats
Tsavorite Garnet Specimen Dimensions: 1.6" x 1.1" x 1"
Mined in the Taita Hills of Kenya
Price: $154.25 (original price: $188.50)
This natural specimen of green tsavorite grossular garnet was mined near the famous "Scorpion Mine" in the Taita Hills of Kenya. The tsavorite garnet is exposed on all surfaces. It is semi-transparent with natural rich green color. The tsavorite formed within pale blue-gray opaque tanzanite. See also an opposite side view of this natural color tsavorite green garnet mineral specimen.

Tsavorite with Tanzanite Mineral Specimen


Code: tsvm156
Natural tsavorite specimen weighing 513 carats
Tsavorite Garnet Specimen Dimensions: 2.3" x 1.8" x 1.2"
Mined in the Taita Hills of Kenya
Price: $162.50
This natural specimen of green tsavorite grossular garnet was mined near the famous "Scorpion Mine" in the Taita Hills of Kenya. The semi-transparent tsavorite garnet has rich green natural color. It formed within a matrix of pale blue-gray opaque tanzanite with graphite.

Small Tanzanite Specimens

Code: tanm189x
From 2.4 grams to 5 grams each (14-25 carats each - see below)
Small tanzanite crystal pieces from 1/2 inch to 3/4 inch long (see sizes below)
These genuine tanzanites were mined in Tanzania
These small size tanzanite mineral specimens were mined in the Merelani Hills of Tanzania. They are translucent to semi-transparent tanzanite crystal pieces with light to medium blue-violet color. Please see below to order.
14 Carat Tanzanite Specimens (2.4 grams each)

Code: tanm189aa
Price: $10.95 each

18 Carat Tanzanite Specimens (3.6 grams each)

Code: tanm189ac
Price: $13.50 each

25 Carat Tanzanite Specimens (5 grams each)

Code: tanm189ae
Price: $18.50 each


Natural Tanzanite Mineral Specimen, 39.6 carats


Code: tanm208
Genuine tanzanite rough specimen weighing 39.6 carats
Tanzanite Mineral Specimen Dimensions: 0.9" long x 0.8"x 0.5"
Mined in Tanzania
Price: $34.95
This tanzanite (Zoisite) specimen was mined in the Merelani Hills of Tanzania. It is a translucent to semi-transparent partially terminated tanzanite crystal section with some natural terminations on three surfaces. See also another view of this genuine tanzanite mineral specimen.

Natural Tanzanite Specimen, 71.9 carats


Code: tanm202
Genuine tanzanite rough specimen weighing 71.9 carats
Tanzanite Mineral Specimen Dimensions: 1.3" long x 0.9"x 0.6"
Mined in Tanzania
Price: $46.25
This tanzanite (Zoisite) specimen was mined in the Merelani Hills of Tanzania. It is translucent tanzanite with some small semitransparent areas. Its surfaces partially covered with graphite and there is a small amount of pyrite. See also a close-up view of this tanzanite specimen.

Natural Tanzanite Mineral Specimen, 51 carats


Code: tanm209
Genuine tanzanite rough specimen weighing 51.0 carats
Tanzanite Mineral Specimen Dimensions: 1.1" long x 0.8"x 0.5"
Mined in Tanzania
Price: $41.95
This tanzanite (Zoisite) specimen was mined in the Merelani Hills of Tanzania. It is a translucent to semi-transparent partially terminated tanzanite crystal section with some terminated surfaces and a small amount of graphite.

Blue Violet Tanzanite Crystal Specimen, 40.6 carats


Code: tanm221
Genuine raw tanzanite specimen weighing 40.6 carats
Tanzanite Crystal Specimen Dimensions: 0.95" long x 0.8"x 0.55"
Mined in Tanzania
Price: $51.25
This tanzanite (Zoisite) specimen was mined in the Merelani Hills of Tanzania. It is a translucent partially terminated tanzanite crystal section with some natural terminations on three surfaces and rough broken surfaces on the backside. When held to a light the tanzanite crystal section glows blue-violet. See a view showing this genuine tanzanite crystal specimen.

Natural Tanzanite Mineral Specimen, 75.4 carats


Code: tanm210
Genuine tanzanite rough specimen weighing 75.4 carats
Tanzanite Mineral Specimen Dimensions: 1.5" long x 0.9"x 0.6"
Mined in Tanzania
Price: $62.50
This tanzanite (Zoisite) specimen was mined in the Merelani Hills of Tanzania. It is translucent to semi-transparent partially terminated tanzanite with white calcite and a small amount of graphite. There is a very small amount of bright green tsavorite garnet as shown. See also an opposite side view of this genuine tanzanite specimen.

Tanzanite Crystal Specimen


Code: tanm212
Genuine tanzanite crystal specimen weighing 51.2 carats
Tanzanite Crystal Specimen Dimensions: 0.95" long x 0.8"x 0.6"
Mined in Tanzania
Price: $62.50
This tanzanite (Zoisite) crystal specimen was mined in the Merelani Hills of Tanzania. There is a semi-transparent naturally terminated tanzanite crystal with light violet color on a matrix composed mostly of graphite. See an additional view of this tanzanite crystal specimen. There is some light green tsavorite garnet on the opposite side. See also an opposite side view of this genuine tanzanite specimen.

Natural Tanzanite Specimen


Code: tanm213
Genuine tanzanite rough specimen weighing 101.9 carats
Tanzanite Mineral Specimen Dimensions: 1.6" long x 1.1"x 0.55"
Mined in Tanzania
Price: $68.50
This tanzanite (Zoisite) specimen was mined in the Merelani Hills of Tanzania. It is a large piece of mostly translucent blue-gray tanzanite with some semi-transparent areas showing deeper blue violet hues. This specimen is over 95% tanzanite with a small amount of accessory graphite and pyrite. See also an opposite side view of this natural tanzanite mineral specimen.

Natural Tanzanite Mineral Specimen, 212.6 carats


Code: tanm211
Genuine tanzanite rough specimen weighing 212.6 carats
Tanzanite Mineral Specimen Dimensions: 1.5" long x 1.1"x 1"
Mined in Tanzania
Price: $133.25 (original price: $168.50)
This tanzanite (Zoisite) specimen was mined in the Merelani Hills of Tanzania. It is translucent to semi-transparent partially terminated tanzanite with a small amount of white calcite and graphite. See an opposite side view of this genuine tanzanite specimen. See also an additional view of this large tanzanite specimen.

Purple Tanzanite Crystal Specimen


Code: tanm219
This natural tanzanite specimen weighs 63.3 carats
Dimensions: 1" long x 0.8"x 0.6"
Mined in Tanzania
Price: $139.25
This natural raw tanzanite specimen (tanzanite is a gem variety of the mineral Zoisite) was mined in the Merelani Hills of Tanzania. It is a partially terminated tanzanite crystal section with some broken surfaces that is semi-transparent with light to medium purple hues. There is a small amount of graphite matrix on the opposite side. See an opposite side view of this genuine purple tanzanite crystal specimen. See an additional view of this tanzanite crystal specimen.

Natural Tanzanite Specimen, 267.5 carats


Code: tanm214
Genuine tanzanite rough specimen weighing 267.5 carats
Tanzanite Mineral Specimen Dimensions: 1.7" long x 1.3"x 1.1"
Mined in Tanzania
Price: $154.25 (original price: $192.50)
This tanzanite (Zoisite) specimen was mined in the Merelani Hills of Tanzania. It is a large piece of mostly translucent blue-gray tanzanite with a few semi-transparent areas showing deeper blue violet hues. This specimen is over 95% tanzanite with a small amount of accessory pyrite and graphite. See also an opposite side view of this natural tanzanite mineral specimen.

Tanzanite Crystal Specimen


Code: tanm218
This natural tanzanite specimen weighs 59.7 carats
Dimensions: 1.2" long x 0.5"x 0.5"
Mined in Tanzania
Price: $234.50
This natural raw tanzanite (Zoisite) specimen was mined in the Merelani Hills of Tanzania. It is a partially terminated tanzanite crystal section that is semi-transparent to transparent with tiny gem-grade areas and light blue-violet hues. See also an opposite side view of this genuine tanzanite crystal specimen.

Large Purple Pink Tanzanite Specimen


Code: tanm222
This natural tanzanite specimen weighs 216.2 carats
Dimensions: 2" long x 1.2"x 0.9"
Mined in Tanzania
Price: $259.44
This raw tanzanite specimen was mined in the Merelani Hills of Tanzania. It is a semi-transparent rough tanzanite specimen that has both pink and purple areas. See also an opposite side view of this genuine raw tanzanite specimen.

Blue and Green Tanzanite Crystal Specimen


Code: tanm220
This natural tanzanite specimen weighs 141.2 carats
Dimensions: 1.3" long x 1.2"x 0.7"
Mined in Tanzania
Price: $282.40
This natural raw tanzanite (Zoisite) specimen was mined in the Merelani Hills of Tanzania. It is a partially terminated tanzanite crystal section that is translucent to semi-transparent with green and blue color zones! See also an opposite side view of this genuine blue green tanzanite crystal specimen.

Natural Tanzanite Specimen, 486 carats


Code: tanm216
Genuine tanzanite rough specimen weighing 486 carats
Tanzanite Mineral Specimen Dimensions: 1.7" long x 1.3"x 1.1"
Mined in Tanzania
Price: $328.50
This tanzanite (Zoisite) specimen was mined in the Merelani Hills of Tanzania. It is mostly translucent blue-gray tanzanite with some areas showing deeper blue-violet hues. This specimen is over 95% tanzanite with accessory graphite. See also an opposite side view of this large tanzanite mineral specimen.

Tanzanite Crystal Cluster, 442.4 carats!


Code: tanm215
Natural tanzanite crystal specimen weighing 442.4 carats
Dimensions: 2.0" x 1.8"x 1.4"
Mined in Tanzania
Price: $442.40
This natural tanzanite (Zoisite) specimen was mined in the Merelani Hills of Tanzania. It is a mass of intergrown partially terminated semi-transparent tanzanite crystals with hues ranging from grayish to pale brown to light lavender and light purple. See a full view of these natural tanzanite crystals. See an opposite side view of this tanzanite crystal cluster. See also a photo showing an edge of this tanzanite crystal specimen held to a light.

Large Natural Tanzanite Specimen, 714.5 carats


Code: tanm217
Genuine tanzanite rough specimen weighing 714.5 carats
Tanzanite Mineral Specimen Dimensions: 3" long x 2"x 1"
Mined in Tanzania
Price: $468.50
This tanzanite (Zoisite) specimen was mined in the Merelani Hills of Tanzania. It is mostly translucent grayish blue tanzanite with some areas showing deeper blue-violet hues. This specimen is over 90% tanzanite with accessory graphite. See also an opposite side view of this large tanzanite mineral specimen.

Natural Tanzanite Specimen, 220.1 carats


Code: tanm151
Natural tanzanite specimen weighing 220.1 carats
Dimensions: 1.4" long x 1.3"x 1.2"
Mined in Tanzania
Price: $121.25 (original price: $168.50)
This natural tanzanite specimen is a blue-violet variety of the mineral zoisite). It was mined in the Merelani Hills of Tanzania. This tanzanite crystal section has mostly broken surfaces with some naturally terminated areas, and it is translucent to semi-transparent.

Zoisite Crystal Specimen, 31.28 carats


Code: tanm141
This natural zoisite crystal weighs 31.28 carats
40mm x 15mm x 7.7mm
Mined in Afghanistan
Price: $257.60 (original price: $322)
This natural color (Zoisite) crystal was stated by our supplier to have been mined in the Nangarhar Provence of Afghanistan. It actually is two crystals that are inter-grown and they are also doubly terminated. They grade from semi transparent at the base to completely transparent gem-grade at their teminations. Its prismatic faces and the terminations have vitreous luster, are in very good condition. This natural color tanzanite crystal has weak dichroism with a very light greenish blue gray color in one direction and a light pinkish gray when viewed from the front as shown in the photo at left which was taken under a mixture of incandescent and flourescent light. See a back-view photo of this zoisite crystal. The crystal morphology of this specimen is very nice as well.

Tanzanite Crystal, 9.58 carats


Code: tanm162
Natural tanzanite crystal weighs 9.58 carats
17mm long x 10mm x 7mm
Mined in Tanzania
Price: $153.28
This natural tanzanite crystal was mined in the Merelani Hills of Tanzania. This moderately included tanzanite crystal would be considered cab grade only. The prismatic faces and the terminations are in fair condition with good luster. The faces are partialy abraided as well as the tip. See also an opposite side view of this genuine tanzanite crystal.

Large Natural Tanzanite Specimen, 467.5 carats


Code: tanm174
Natural Tanzanite Specimen weighs 467.5carats (93.5 grams)
This genuine tanzanite dimensions is: 3.5" long x 1.25"x .55"
Mined in Tanzania, Merilani Block "D"
Price: $1963.50
This large natural tanzanite specimen weighs over 467 carats. It was mined in the Merelani Hills of Tanzania (Block "D"). This beautiful, large tanzanite specimen is mostly translucent to semi-transparent. A good portion of this large crystal is gem quality - great as a specimen or for carving or cabbing. This is a stand alone specimen, but due to its height should be supported. The lower shoulder of its termination is capped with a thin layer of silvery black graphite, offering a nice contrast. The photo at the left is with back-lighting. See another view of this tanzanite crystal specimen. See also an edge view photo of this large tanzanite crystal. See also another view of this 3.5 inch long tanzanite crystal. See also another view of this 3.5 inch long tanzanite crystal.

Gem-Grade Tanzanite Crystal, 15.5 carats


Code: tanm200
Genuine Tanzanite Crystal weighs 15.5 carats
Tanzanite Crystal Dimensions: 0.7" long x 0.4"x 0.3"
Mined in Tanzania
Price: $232.50 (original price: $310)
This naturally terminated tanzanite crystal was mined in the Merelani Hills of Tanzania. It is semi-transparent to transparent. The prismatic faces and the terminations are in mostly good conditon with some abraded areas, and they have vitreous luster. This naturally terminated tanzanite crystal has a gem grade area at its tip that would yield a one carat faceted gemstone. See also a view showing this gem grade tanzanite crystal lying on its side.

Tanzanite Crystal, 16.1 carats


Code: tanm179
16.1 carats
25mm long x 13mm x 7mm
Mined in Tanzania
Price: $180.00
This natural tanzanite crystal was mined in the Merelani Hills of Tanzania. This mostly transparent lightly included tanzanite crystal would best be used as a specimen. The faces and the terminations are in good condition with good luster with the exception of a broken tip on an outer termination . The faces are partialy striated as well. The color is a medium tone of purplish blue. See also a side-view photo with transmitted light of this gem grade tanzanite crystal.

Tanzanite Crystal, 8.45 carats


Code: tanm193
3.98 carats
16.0mm long x10..0mm x 7.0mm
Mined in Tanzania
Price: $101.40
This natural tanzanite crystal was mined in the Merelani Hills of Tanzania. This unheated, lightly included tanzanite crystal would be considered cuttable, with a good sized clean area. The intergrown side by side crystals are somewhat striated but the terminations are in good condition. This specimen is heat treatable. It has a pale brownish greenish yellow look as is. See a side-view of this unheated tanzanite crystal. See also another view of this natural color tanzanite crystal.
 


Our Tanzanite Mineral Specimens and Tanzanite Crystals were mined in the Merelani Hills of Tanzania.

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Natural Tanzanite

Tanzanite is a rare gem variety of the mineral known as zoisite, which is a mineral in the epidote group. Tanzanite's history began in the early 1960's when it was first identified. The name tanzanite was given to this zoisite variety in 1968 by the New York jeweler Tiffany & Co. in honor of the country where it was discovered in the Merelani Hills near Mount Kilimanjaro.

Today, tanzanite of commercial importance is still found only in the Merelani Hills of Tanzania, and we specialize in real tanzanite that was mined in those Merelani Hills! Right now, we are offering natural raw tanzanite pieces and tanzanite mineral specimens in a variety of sizes and qualities, as well as a selection of naturally terminated gem-grade tanzanite crystals. See also our selection of real tanzanite gemstones that were handcrafted from some of these tanzanite crystals mined at Merelani! Be sure to see our real tanzanite jewelry items set with these genuine tanzanite gemstones.

Tanzanite is a natural trichroic gem variety of the mineral zoisite, with different colors along each of its three crystallographic directions. We do have some very unusual genuine tanzanite crystals, gems & tanzanite jewelry items showing blue, violet, and green trichroism.

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Each one of our tanzanite jewelry items is set with a genuine tanzanite gemstone that was mined in Tanzania. Here at mineralminers.com, we do not have any lab-created tanzanite gems! Natural tanzanite is carefully heated to deepen its beautiful blue-violet colors. Tanzanite Birthstone Jewelry (set with genuine tanzanite gemstones) is a very popular birthstone jewelry gift for December birthdays.

Select any link below to see superior quality tanzanite jewelry designs in solid 14k & 18k gold, and in pure sterling silver.

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Tanzanite Information

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Information about genuine Tanzanite and its history, physical properties, chemistry, occurance, and metaphysical uses is displayed on our Tanzanite Information page.

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TANZANITE
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Genuine Tanzanite Crystals, Mineral Specimens and other Natural Tanzanite Products in our Store


Tanzanite Mineral Specimens and Tanzanite Crystals

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We do have additional inventory of genuine tanzanite crystals and mineral specimens in stock in all shades of blue violet as well as green and purple tanzanite specimens, so be sure to let us know if you have any tanzanite mineral specimen requests.

Be sure to also see our pages displaying genuine tanzanite gemstones and tanzanite jewelry including fine tanzanite gemstone earrings in 14k gold and sterling silver.

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Tanzanite Mineral Specimens & Crystals

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Last Updated: May 29, 2025
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