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

This unique item is sold.

Item: spim142
29.5 carats (5.9 grams)
0.85" x 0.7" x 0.65"
(22.5mm x 17mm x 16mm)
Mined near Mahenge, Tanzania
Price: $118.00
This natural spinel crystal has rich purple color, vitreous luster, and it is semi-transparent to transparent with some tiny gem-grade areas. Some of the faces are in good condition with some broken areas.

This unique item is sold.

Item: spim146
149 carats (29.8 grams)
1.3" x 1.25" x 1.2"
(33mm x 32mm x 30mm)
Mined near Mahenge, Tanzania
Price: $223.50
This natural purple spinel crystal has octahedral form with some twinned surfaces. It has vitreous luster, and it is semi-transparent along most edges and at the crystal tips (see a photo held near a light). Most of the faces are in good condition. See also another view.

Item: spim148
295.2 carats (59.04 grams)
1.75" x 1.5" x 1.2"
(45mm x 37mm x 30mm)
Mined near Mahenge, Tanzania
Price: $442.80
This specimen is a cluster of more than 20 intergrown naturally terminated spinel crystals. These spinel crystals have very dark gray-blue-purple color that is nearly black. They have vitreous luster, and they are semi-transparent 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 also another view.

Item: spim149
204 carats (40.8 grams)
1.4" x 1.3" x 1"
(37mm x 33mm x 25mm)
Mined near Mahenge, Tanzania
Price: $510.00
This natural 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 tiny gem grade areas. There also is a small area showing twinned surfaces. Most of the faces are in good condition, with some abraded areas. See also another view.

Item: spim150
400.6 carats (80.12 grams)
2" x 1.7" x 1.3"
(51mm x 42mm x 32mm)
Mined a Ipanko, Tanzania
Price: $582.25
This natural pink spinel crystal has octahedral form with red-pink natural color. Its surfaces are in very good condition overall with some naturally etched features and some minor abrasions. This natural pink spinel specimen is translucent with some semi-transparent areas. See also a view of one side with brown phlogopite mica, a different side view photo, another view, and a view under incandescent light.

Item: spim151
589.5 carats (117.9 grams)
2.3" x 1.9" x 1.5"
(59mm x 48mm x 38mm)
Mined at Ipanko, Tanzania
Price: $589.50
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 also a side view photo, and a back view.

Item: spim152
654 carats (130.8 grams)
2.25" x 2.2" x 1.6"
(57mm x 55mm x 41mm)
from Mahenge, Tanzania
Price: $831.25
This 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 also another view.

Item: spim154
1073.6 carats (214.72 grams)
2.7" x 2.5" x 2"
(67mm x 63mm x 52mm)
Mined at Ipanko, Tanzania
Price: $1610.25
This natural spinel crystal has octahedral form and purple color with a few small areas where the color grades into blue. There is deep orange color clinohumite exposed on three surfaces along with 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 also a side view photo.

This unique item is sold.

Item: spim113
192.67 carats
1.6" x 1.5" x 1.2"
(41mm x 39.5mm x 29.5mm)
Mined at Mogok, Burma (Myanmar)
Price: $481.68
This rare specimen of natural spinel was mined at Mogok, Burma (Myanmar) in 1999. It is actually composed of three intergrown spinels with very rich reddish purple color (100% natural color). These crystals are mostly semi-transparent with small transparent areas. The terminations are in very good condition with vitreous luster. One of these spinel crystals shows twinning as well (see close-up of twin plane). See also a back-view photo of this fine quality natural Burmese spinel specimen.