Tanzanian Minerals


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K839 - Titanite with Tsavorite on Calcite $ 450 SOLD
Merelani Hills, Arusha, Tanzania
thumbnail - 3 x 2.5 x 2 cm


(click on an image to enlarge)

Titanite with Tsavorite on Calcite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K839a.jpg] Titanite with Tsavorite on Calcite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K839b.jpg] Titanite with Tsavorite on Calcite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K839c.jpg]

A 2.2cm Titanite (Sphene) crystal standing on edge atop Calcite crystals that are in turn sprinkled with small green Tsavorite crystals. Titanite is uncommon at Merelani and this is a superb display example that would make a great addition to a Merelani suite. Undamaged and displays well from many angles.


K845 - Prehnite $ 175
Merelani Hills, Arusha, Tanzania
miniature - 3.7 x 3.5 x 2.5 cm


(click on an image to enlarge)

Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K845a.jpg] Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K845b.jpg] Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K845c.jpg] Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K845d.jpg]

Spherical cluster of green Prehnite with larger individual crystals that have grown out from the center. The backside is contacted with an attached partial Tanzanite crystal and there is Graphite on the base. The front and larger crystals are all undamaged. This greenish color is distinct and typical of 2018/2019 finds.


K836 - Pyrite on Prehnite $ 325 SOLD
Merelani Hills, Arusha, Tanzania
miniature - 3.4 x 2.5 x 2 cm


(click on an image to enlarge)

Pyrite on Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K836a.jpg] Pyrite on Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K836b.jpg] Pyrite on Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K836c.jpg]

A 1.4cm mirror-lustrous Pyrite crystal set in yellow Prehnite crystals. I don't recall ever seeing one like this (Pyrite in Prehnite). Neither mineral is rare at the Merelani Tanzanite mines, but I've never seen them together like this. A stunner.


K835 - Tanzanite $ 425
Merelani Hills, Arusha, Tanzania
miniature - 3.8 x 1.5 x 1 cm


(click on an image to enlarge)

Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K835a.jpg] Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K835b.jpg] Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K835c.jpg] Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K835d.jpg] Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K835e.jpg]

Double-terminated bi-colored Tanzanite crystal, blue/purple with yellow tips on each end. Clean and undamaged.


K797 - Spinel $ 225
Mahenge, Morogoro, Tanzania
thumbnail - 2.5 x 2.3 x 1.8 cm


(click on an image to enlarge)

Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K797a.jpg] Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K797b.jpg] Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K797c.jpg] Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K797d.jpg] Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K797e.jpg]

Pink Spinel from Mahenge is world famous for incredible faceted gemstones and much of what is found is used for gems. This is an uncommon, nearly complete octahedral crystal with just a small amount of chipping on one tip, otherwise undamaged and lustrous all around. Weighs 13.37 grams.


K800 - Spinel $ 275
Mahenge, Morogoro, Tanzania
thumbnail - 2 x 1.7 x 1.5 cm


(click on an image to enlarge)

Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K800a.jpg] Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K800b.jpg] Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K800c.jpg] Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K800d.jpg] Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K800e.jpg]

Intergrown cluster of 4 red/pink Spinels. Spinel from Mahenge is world famous for incredible faceted gemstones and much of what is found is used for gems. This is good cluster of octahedral crystals with just a small amount of chipping. Largest crystal is 1.8cm.


K799 - Spinel $ 90 SOLD
Mahenge, Morogoro, Tanzania
thumbnail - 2.3 x 2 x 1.5 cm


(click on an image to enlarge)

Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K799a.jpg] Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K799b.jpg] Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K799c.jpg]

A 1.2cm pink Spinel in Calcite. The Spinel has great color and transparent zones. There is a chip on one edge, otherwise undamaged.


K808 - Spinel $ 160
Mahenge, Morogoro, Tanzania
thumbnail - 2 x 1.9 x 1 cm


(click on an image to enlarge)

Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K808a.jpg] Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K808b.jpg] Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K808c.jpg] Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K808d.jpg]

A 1.2cm pink Spinel on Calcite. The Spinel has great color and is translucent with transparent zones. Undamaged.


K820 - Spinel $ 140
Mahenge, Morogoro, Tanzania
thumbnail - 1.5 x 1.5 x 1 cm


(click on an image to enlarge)

Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K820a.jpg] Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K820b.jpg] Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K820c.jpg] Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/K820d.jpg]

A 1.5cm pink Spinel with attached Calcite. The Spinel has great color and is translucent with transparent zones. Undamaged.


K796 - Pyrite $ 300
Merelani Hills, Arusha, Tanzania
small cabinet - 6 x 5.2 x 3.5 cm


(click on an image to enlarge)

Pyrite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K796aa.jpg] Pyrite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K796ba.jpg] Pyrite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K796ca.jpg] Pyrite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K796da.jpg]

Large, somewhat flat single Pyrite crystal with large, flat faces and incredible luster. The exotic crystal forms and high luster of Merelani Pyrite make it my favorite of any Pyrite found. This is a good example atop a small amount of Calcite and Graphite.


K793 - Pyrite $ 150
Merelani Hills, Arusha, Tanzania
small cabinet - 5.5 x 4.5 x 4.5 cm


(click on an image to enlarge)

Pyrite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K793aa.jpg] Pyrite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K793ba.jpg] Pyrite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K793ca.jpg] Pyrite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K793da.jpg] Pyrite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K793ea.jpg]

Large, complex single Pyrite crystal with high luster. The exotic crystal forms and high luster of Merelani Pyrite make it my favorite of any Pyrite found. There are some natural surface indentations that were caused by growth of other crystals and it's contacted on the base, otherwise complete all around with just a few chips and great overall form and presentation.


K774 - Tsavorite $ 750
Merelani Hills, Arusha, Tanzania
thumbnail - 2.6 x 2.3 x 1.8 cm


(click on an image to enlarge)

Tsavorite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K774a.jpg] Tsavorite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K774b.jpg] Tsavorite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K774ca.jpg] Tsavorite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K774da.jpg]

Large single green Grossular var. Tsavorite with bevelled edges and high luster. Contacted at the bottom and all top faces undamaged.


K772 - Tanzanite $ 300 SOLD
Merelani Hills, Arusha, Tanzania
thumbnail - 1.5 x 0.8 x 0.4 cm


(click on an image to enlarge)

Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K772aa.jpg] Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K772ba.jpg] Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K772c.jpg] Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K772ca.jpg]

Single 'Cobalt Blue' Tanzanite crystal from a small recent find. Of all my many years of selling Tanzanite I have never seen this color, a deep almost silky blue that reminds me of Kashmir Sapphire, hard to capture on camera. Only about 50 crystals were found and none very large. Clean and undamaged.


K770 - Sphalerite (twinned) $ 425 SOLD
Merelani Hills, Arusha, Tanzania
thumbnail - 1.7 x 1 x 0.8 cm


(click on an image to enlarge)

Sphalerite (twinned) from Merelani Hills, Arusha, Tanzania [db_pics/pics/K770aa.jpg] Sphalerite (twinned) from Merelani Hills, Arusha, Tanzania [db_pics/pics/K770ba.jpg] Sphalerite (twinned) from Merelani Hills, Arusha, Tanzania [db_pics/pics/K770ca.jpg] Sphalerite (twinned) from Merelani Hills, Arusha, Tanzania [db_pics/pics/K770d.jpg] Sphalerite (twinned) from Merelani Hills, Arusha, Tanzania [db_pics/pics/K770da.jpg]

Complete twinned single Sphalerite of high quality. Undamaged with just a bit of roughness at the base where it was attached to Graphite. Clean and undamaged. Translucent red when backlit. Uncommonly good Merelani Sphalerite.


K794 - Alabandite $ 750 SOLD
Merelani Hills, Arusha, Tanzania
small cabinet - 8.5 x 4.5 x 4.5 cm


(click on an image to enlarge)

Alabandite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K794aa.jpg] Alabandite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K794ba.jpg] Alabandite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K794ca.jpg] Alabandite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K794d.jpg]

Large, undamaged octahedral Alabandite crystal with a minor amount of attached Pyrite. Compound crystal with clean, smooth faces and some stepped and cavernous growth structures on the sides. This is a big crystal that not only has size but also fine quality. These are considered by many as the best of species and are certainly the largest ever found. A crystal like this would have sold in several thousands of dollars when they were first found. Prices have come down since the initial find, but this is still a great price for a crystal like this.

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