Spinel Crystals and Spinel in Matrix Mineral Specimens
Natural Spinel Crystals mined at Mogok, Burma and near Mahenge, Tanzania

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Lavender Spinel Octahedron

Code: spim169
Natural spinel crystal weighing 4.15 carats
Spinel Crystal Dimensions: 0.4" x 0.35" x 0.3"
(10mm x 9mm x 8mm)
Mined near Mahenge, Tanzania
Price: $38.50
This small natural spinel crystal is naturally terminated with octahedral form, light brownish pink natural color, and vitreous luster. It is semi-transparent. See another view of this natural octahedral spinel mineral specimen.

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Purple Spinel Octahedron

Code: spim164
Natural purple spinel crystal weighing 8.77 carats
Spinel Crystal Dimensions: 0.5" x 0.4" x 0.4"
(13mm x 11mm x 10mm)
Mined near Mahenge, Tanzania
Price: $88.50
This small natural spinel crystal is naturally terminated with purple natural color and vitreous luster. It is semi-transparent and shows a twin plane along one side. See another view of this natural purple spinel crystal.

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Purple Spinel Octahedron

Code: spim163
Natural purple spinel crystal weighing 20.25 carats (4.05 grams)
Spinel Crystal Dimensions: 0.7" x 0.65" x 0.6"
(17mm x 16mm x 15mm)
Mined near Mahenge, Tanzania
Price: $102.50
This natural spinel crystal is naturally terminated with purple natural color and vitreous luster. It is semi-transparent with some abraded areas. See another view of this natural purple spinel specimen.

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Purple Mahenge Spinel Crystal

Code: spim159
Natural purple spinel crystal specimen weighing 18.85 carats (3.77 grams)
Spinel Crystal Dimensions: 0.75" x 0.55" x 0.4"
(19mm x 14mm x 10mm)
Mined near Mahenge, Tanzania
Price: $118.50
This natural spinel crystal specimen is partially terminated with purple natural color and vitreous luster. It is semi-transparent to transparent with tiny gem-grade areas inside. See another view of this natural purple Mahenge spinel crystal. See also an opposite side view of this natural purple spinel crystal.

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Red-Pink Mahenge Spinel Crystal

Code: spim156
Natural spinel crystal specimen weighing 21.05 carats (4.21 grams)
Spinel Crystal Dimensions: 0.7" x 0.7" x 0.5"
(17mm x 17mm x 12mm)
Mined near Mahenge, Tanzania
Price: $138.50
This natural spinel crystal specimen is partially terminated with rich red-pink natural color, vitreous luster, and it is semi-transparent. See an opposite side view of this natural red-pink Mahenge spinel crystal.

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Purple-Pink Mahenge Spinel Crystal

Code: spim158
Natural spinel crystal specimen weighing 24.3 carats (4.86 grams)
Spinel Crystal Dimensions: 0.7" x 0.7" x 0.5"
(17mm x 17mm x 12mm)
Mined near Mahenge, Tanzania
Price: $138.50
This natural spinel crystal specimen is a naturally terminated octahedron with purple-pink natural color and vitreous luster. It is translucent to semi-transparent. See an opposite side view of this natural purple-pink Mahenge spinel crystal.

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Black Spinel Crystal

Code: spim170
Natural black spinel specimen weighing 475 carats (95 grams)
Black Spinel Specimen Dimensions: 2" x 1.5" x 1.3"
(51mm x 38mm x 33mm)
Mined at the Golovskoe Mine, Yakutia, Russia
Price: $145.00
This natural spinel mineral specimen is a naturally terminated spinel crystal with a small amount of matrix composed of diopside with microcline. The spinel exhibits a combination of octahedral and dodecahedral forms. The terminations are in good overall condition with a few minor abrasions. This black spinel crystal also shows twinning. This type of black spinel crystal is sometimes called pleonaste and also black jack. This spinel crystal is opaque with black natural color and vitreous luster. See an opposite side view of this natural black spinel crystal.

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Purple Mahenge Spinel Crystal on Matirx

Code: spim160
Natural purple spinel crystal specimen weighing 42.80 carats (8.56 grams)
Spinel on Matrix Specimen Dimensions: 0.8" x 0.8" x 0.7"
(21mm x 20mm x 17mm)
Mined near Mahenge, Tanzania
Price: $154.50
This natural spinel crystal specimen is naturally terminated with purple natural color and vitreous luster. It is semi-transparent to transparent with tiny gem-grade areas inside. See another view of this natural purple spinel crystal. See also another view of this natural purple spinel crystal.

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Mahenge Red Spinel Crystals

Code: spim157
Natural red spinel crystal cluster weighing 17.25 carats
Spinel Crystal Dimensions: 0.7" x 0.7" x 0.4"
(17mm x 17mm x 11mm)
Mined near Mahenge, Tanzania
Price: $215.00
This natural spinel mineral specimen is a cluster of small intergrown naturally terminated spinel crystals on matrix. The spinels have strong pinkish-red natural color and vitreous luster. They are semi-transparent to transparent with tiny gem-grade areas inside. See also an opposite side view of this natural color red spinel crystals.

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Pink Spinel Crystals

Code: spim161
Natural spinel crystal cluster weighing 38.0 carats (7.6 grams)
Spinel Specimen Dimensions: 0.9" x 0.8" x 0.6"
(23mm x 20mm x 17mm)
Mined near Mahenge, Tanzania
Price: $285.00
This natural spinel mineral specimen is a cluster of naturally terminated reddish-pink spinel crystals. These natural color spinel crystals are translucent to semi-transparent with vitreous luster. See an opposite side view of these natural Mahenge pink spinel crystals. See also an additional side view of this cluster of intergrown pink spinel crystals.

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Black Spinel Crystal

Code: spim171
Natural black spinel specimen weighing 546 carats (109.2 grams)
Black Spinel Specimen Dimensions: 2.1" x 1.7" x 1.5"
(53mm x 43mm x 38mm)
Mined at the Golovskoe Mine, Yakutia, Russia
Price: $435.00
This natural spinel mineral specimen is naturally terminated spinel with a small amount of matrix composed of diopside with microcline. The spinel weighs approximately 500 carats! It is actually several intergrown crystals exhibiting a combination of octahedral and dodecahedral forms with very interesting multiple twinning. See a view showing the multiple twinning of these natural twinned black spinel crystals. The terminations are in very good overall condition. This type of black spinel crystal is sometimes called pleonaste or black jack. This spinel crystal is opaque with black natural color and vitreous luster. See an opposite side view of this natural black spinel crystal.

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295.2 carat Indigo Spinel Specimen

Code: spim148
Dark Purple spinel crystal cluster weighing 295.1 carats (59.02 grams)
Indigo Spinel Specimen Dimensions: 1.75" x 1.5" x 1.2"
(45mm x 37mm x 30mm)
Mined near Mahenge, Tanzania
Price: $885.00
This specimen is a cluster of more than 20 intergrown naturally terminated spinel crystals. These spinel crystals have very dark blue-purple to purple color that appears almost black. They have vitreous luster, and they are semi-transparent with dark purple color along some edges when held to a light. Several of these are twinned spinel crystals! Many of the spinel crystals have terminations in good condition while some are broken. See an additional view of these natural color dark purple spinel crystals. See also a different side view of these natural indigo spinel crystals.

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223.9 carat Purple Spinel Specimen

Code: spim166
Purple spinel specimen weighing 223.9 carats (44.78 grams)
Indigo Spinel Specimen Dimensions: 1.6" x 1.2" x 1.1"
Mined near Mahenge, Tanzania
Price: $885.00
This natural spinel mineral specimen is a large partially terminated spinel crystal with dark purple natural color and vitreous luster. Some of the surfaces have terminations in good condition while some are broken. This spinel is semi-transparent and shows purple color along edges when held to a light. See a view of this purple spinel crystal held up to a light. See an opposite side view of this purple spinel specimen. See also a close-up view of the opposite side of this purple spinel crystal held up to a light.

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Pink Mahenge Spinel Crystal

Code: spim162
Natural spinel crystal specimen weighing 193.5 carats (38.7 grams)
Spinel Crystal Dimensions: 1.5" x 1.2" x 1"
(39mm x 31mm x 25mm)
Mined near Mahenge, Tanzania
Price: $985.00
This natural spinel crystal is naturally terminated with pink natural color and vitreous luster on most surfaces. It is translucent to semi-transparent. See an opposite side view of this natural pink Mahenge spinel crystal. See also a side view of this collector quality pink spinel crystal.

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Lavender Spinel Crystals with Apatite and Phlogopite

Code: spim151
Spinel crystals with matrix specimen weighing 589.5 carats (117.9 grams)
Spinel Specimen Dimensions: 2.3" x 1.9" x 1.5"
(59mm x 48mm x 38mm)
Mined at Ipanko, Tanzania
Price: $945.00
This natural spinel specimen appears to have formed as a single large twinned crystal which subsequently separated by partial dissolution along a twin plane running through the middle of the specimen into two separate spinel crystals that rotated slightly and then became secured in place by light green apatite with a small amount of light brown phlogopite mica. Most of the spinel is a light lavender-purple color with a couple of small areas showing pale blue-gray color. The spinel is terminated and etched on most surfaces with some broken areas. It has vitreous luster, and it is semi-transparent mostly with some tiny transparent gem grade areas. See a side view of these natural color lavender spinel crystals. See also a back view of these lavender spinel crystals.

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Intergrown Pink Spinel Octahdrons

Code: spim165
Natural spinel mineral specimen weighing 532.1 carats (106.42 grams)
Spinel Specimen Dimensions: 2.2" x 1.7" x 1.6"
(56mm x 43mm x 40mm)
Mined near Mahenge, Tanzania
Price: $1135.00
This natural spinel mineral specimen is composed of two intergrown pink spinel octahedral crystals. They are naturally terminated with pink natural color and vitreous luster on most surfaces. They are translucent along edges and otherwise opaque. See another view of these natural pink spinel crystals. See also a side view of these collector quality pink spinel octahedrons. See an additional view of these pink spinel octahedrons.

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Reddish Purple Spinel Crystal

Code: spim149
Natural spinel crystal weighing 204 carats (40.8 grams)
Spinel Crystal Dimensions: 1.4" x 1.3" x 1"
(37mm x 33mm x 25mm)
Mined near Mahenge, Tanzania
Price: $1225.00
This natural color reddish purple spinel crystal has octahedral form with some etched surfaces. It has vitreous luster, and it is semi-transparent to transparent along most edges and at the crystal tips with some small gem grade areas visible. There also is a small area showing twinned surfaces. Most of the faces are in good condition, with some abraded areas. See another view of this natural reddish purple Mahenge spinel crystal.

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654 carat Indigo Spinel Crystal Cluster

Code: spim152
Natural spinel crystal cluster weighing 654 carats (130.8 grams)
Spinel Specimen Dimensions: 2.25" x 2.2" x 1.6"
(57mm x 55mm x 41mm)
from Mahenge, Tanzania
Price: $1295.00
This natural spinel mineral specimen is a cluster of several intergrown naturally terminated spinel crystals. These spinel crystals appear blackish, and when held to a light have very dark gray-blue-purple color along some edges and at crystal tips. They have vitreous luster, and several of these are twinned spinel crystals with a large crystal showing flattened spinel law twinning. Many of the spinel crystals have terminations in good condition while some are broken. See an additional view of these natural color dark purple spinel crystals. See also a view of these spinel crystals held to a light.

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Large Pink Spinel Mineral Specimen

Code: spim168
Natural spinel mineral specimen weighing 2825 carats (565 grams)
Spinel Specimen Dimensions: 3.6" x 3.6" x 2.1"
(92mm x 91mm x 53mm)
Mined near Mahenge, Tanzania
Price: $1695.00
This natural spinel mineral specimen is composed of several large intergrown pink spinel crystals. It weighs 1.25 pounds! These large pink spinels are partially terminated with naturally etched surfaces. They are translucent with some small semi-transparent areas. See a side view of this natural large pink spinel mineral specimen. See a different side view of this large pink spinel mineral specimen. See another view of this large pink spinel specimen. See also an additional view of this large Mahenge pink spinel mineral specimen.

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Large Lavender Spinel Crystal with Clinohumite

Code: spim154
Spinel crystal with matrix weighs 1073.6 carats (214.72 grams)
Spinel Mineral Specimen Dimensions: 2.7" x 2.5" x 2"
(67mm x 63mm x 52mm)
Mined at Ipanko, Tanzania
Price: $2145.00
This natural spinel crystal has octahedral form and reddish-purple color with a few small areas where the color grades into blue. Just this large spinel crystal weighs about 900 carats, and together with its matrix the entire specimen weighs 1073.6 carats. There is some deep orange color clinohumite exposed on three surfaces along with a small amount of green apatite (possibly scapolite?) and white marble. The clinohumite is highly fractured with tiny gem grade areas. The spinel has terminations in good to very good condition on most surfaces with some broken areas. It has vitreous luster, and it is semi-transparent with some small transparent gem grade areas. See a close-up view of this large spinel crystal held to a light. See an additional close-up view of a different side of this large lavender spinel crystal held to a light. See a full side view of this natural color large lavender spinel crystal. See an additional side view of this large spinel crystal. See another side view of this large lavender spinel crystal. See also an additional view of this unique large spinel crystal.

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Giant Pink Spinel Octahdron

Code: spim167
Natural spinel mineral specimen weighing 11050 carats (2210 grams)
Spinel Specimen Dimensions: 5.8" x 5.4" x 4.8"
(148mm x 137mm x 122mm)
Mined near Mahenge, Tanzania in 2007
Price: $22100.00
This natural spinel mineral specimen is a very rare size large pink spinel octahedral crystal with some light brown phlogopite mica on its surfaces. The spinel is naturally terminated with pink natural color and vitreous luster on most surfaces. It is translucent along some edges and otherwise opaque. See a side view of this natural giant Mahenge pink spinel crystal. See also a different side view of this collector quality large pink spinel octahedron. See an additional side view of this giant pink spinel crystal. See an additional view of this unique giant Mahenge pink spinel crystal.

Our Spinel Mineral Specimens & Spinel Crystals are completely natural - just as they formed inside the earth!

We specialize in natural spinel! Right now, we are offering some very rare large spinel octahedrons mined at Mahenge, Tanzania.

See also our page displaying Genuine Spinel Gemstones which were mined in Burma, Sri Lanka, Tanzania, and Madagascar in all natural shades of pink, blue, purple, indigo and red.

We have a variety of other genuine spinel items in stock including real spinel crystals and spinel in matrix mineral specimens that were found in Burma and also some that were discovered at Mahenge, Tanzania. We are offering some very rare size natural spinel crystals as well. Be sure to see our online selection of natural spinel mineral specimens & spinel octahedrons.

See also our genuine aquamarine jewelry in 14k gold: aquamarine rings, aquamarine necklaces, aquamarine earrings, and aquamarine pendants.

Natural Spinel Jewelry

Each one of our spinel jewelry items is set with a natural spinel gemstone that was mined in either Sri Lanka, Burma, Vietnam, Madagascar, Tanzania or India. Each of the beads in our black spinel necklaces was handcrafted from a natural black spinel crystal!

Here at mineralminers.com, we do not have any lab-created spinels, and we do not have any diffusion treated spinels! We specialize in genuine spinel jewelry set with real spinel gemstones.

We offer these natural spinel gems in a large assortment of natural colors, sizes and shapes available in solid 14k gold natural spinel jewelry designs.
These beautiful 14k gold spinel jewelry items were handcrafted into unique spinel earrings, spinel pendants, spinel rings and spinel necklaces.

Be sure to see our selection of real spinel rings with natural mined spinel gemstones that have not been heated or treated in any way!

We are offering these genuine natural spinel rings with an amazing variety of all natural colors including blue, pink, lavender and red, as well as natural indigo spinel rings & natural purple spinel rings!
To see more natural spinel photos, just follow another linked image below. To see photos of another mineral variety, select any link in our Mineral Inventory & Factsheet Index.

Natural Spinel Crystals and Mineral Specimens & other Natural Spinel Products in our Online Store

Each of our spinel items is natural color - unheated and untreated!

Mineral Specimens and Crystals

We have been mining professionally for gems & minerals for more than 35 years, and we offer a very large variety of natural crystals, available in many different minerals, including naturally terminated crystals of many different pegmatite minerals (some in matrix).

We also have some very large crystals and decorator mineral specimens in stock, some weighing over 1500 pounds!

We specialize in natural mineral specimens and crystals. See the links below for a selection of collector quality natural mineral specimens.

Natural Mineral Specimens

Natural Spinel Crystals and Mineral Specimens

Would you like us to inform you when we add on this page more natural spinel crystals and spinel in matrix mineral specimens? Be sure to see some of our giant spinel crystals that were mined at Mahenge, Tanzania. We do have additional inventory of natural red spinel crystals, purple spinel crystals, pink spinel crystals, and indigo spinel crystals as well as spinel in matrix mineral specimens in stock, so be sure to let us know if you have any natural spinel mineral specimen requests.

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