Tanzanian Minerals — Marin Mineral

Tanzanian Minerals
November 1, 2022 · 14 specimens

LP349 - Tsavorite sold

Merelani Hills, Arusha, Tanzania
Thumbnail - 2.9 x 2.4 x 2 cm

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Large single green Grossular crystal from the Merelani Tanzanite mines. This crystal features big, glassy crystal faces, great color, and good size. There is some etching along the sides and contacts from other crystals and a bit of Graphite attached to the back. Highly lustrous faces and good transparency. Weighs 16.49 grams.

LP350 - Ruby sold

Mahenge, Morogoro, Tanzania
Thumbnail - 2.7 x 2.5 x 1.5 cm

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Translucent to transparent Ruby crystal on a Pyrite rich matrix. This locality is best known for Spinel but occasionally produces Rubies.

LP351 - Tsavorite, Diopside on Titanite sold

Merelani Hills, Arusha, Tanzania
Miniature - 3.5 x 3 x 2 cm

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This is a really neat and aesthetic combination specimen from the Merelani Tanzanite mines. A large, chocolate brown twinned Titanite with attached green Tsavorite and white Diopside crystals on one side. Titanite crystals are fairly uncommon at Merelani.

LP352 - Diopside on Tanzanite $450 available

Merelani Hills, Arusha, Tanzania
Miniature - 3.5 x 3 x 1.7 cm

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Two terminated green Diopside crystals spearing through a partial Tanzanite crystal. This is a colorful and unusual specimen unlike any I can recall seeing before. The Tanzanite is thick too, with good sized transparent areas that give this piece cutting rough value. It weighs 24.58 grams (122 carats).

LP353 - Diopside sold

Merelani Hills, Arusha, Tanzania
Thumbnail - 3 x 2.2 x 1.6 cm

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Glassy single Diopside crystal from the Merelani Tanzanite mines. Found as a byproduct of mining for Tanzanite, these Diopside crystals are some of the world's best. This crystal is complete all around with glassy luster and gem areas inside. Undamaged.

LP354 - Ruby sold

Mahenge, Morogoro, Tanzania
Miniature - 4 x 3 x 2 cm

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Three translucent Ruby crystals in matrix from Mahenge.

LP355 - Prehnite $225 available

Merelani Hills, Arusha, Tanzania
Miniature - 4 x 3.7 x 3.5 cm

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Well crystallized group of translucent Prehnite with a bit of attached Graphite on the base. Somewhat spherical in shape with great lemon yellow color.

LP356 - Pyrite on Diopside sold

Merelani Hills, Arusha, Tanzania
Thumbnail - 2.5 x 1.8 x 1.2 cm

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Stunning thumbnail of a bright metallic Pyrite crystal on light green Diopside crystals.

LP357 - Tsavorite sold

Merelani Hills, Arusha, Tanzania
Thumbnail - 2 x 1.6 x 1.3 cm

(click on an image to enlarge)

Single green Grossular crystal from the Merelani Tanzanite mines. This crystal features big, glassy crystal faces, good color, and gemmy areas. It's complete and undamaged on the top and sides and contacted on the bottom where it was formerly attached to Graphite. Weighs 7.13 grams.

LP358 - Pink Tanzanite (Zoisite) sold

Merelani Hills, Arusha, Tanzania
Thumbnail - 1.1 x 0.6 x 0.4 cm

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Single transparent crystal of pink Tanzanite (Zoisite) from Merelani. Pink is one of the rarest colors in Tanzanite. While this is a small crystal, it is also perfect and of a quality that would quickly cost in the thousands of dollars if larger. This is a chance to get a quality pink Tanzanite that won't break the bank.

LP359 - Magnesioaxinite $350 available

Merelani Hills, Arusha, Tanzania
Miniature - 3.8 x 3 x 1.1 cm

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Thick single crystal of Magnesioaxinite from the Merelani Tanzanite mines. The crystal is about half purple and half orange and well crystallized on both sides. Like most, there is some chipping/damage around the edges. Importantly, it is a thick and robust crystal with lots of transparent areas.

LP360 - Diopside sold

Merelani Hills, Arusha, Tanzania
Miniature - 3.4 x 2.4 x 1.4 cm

(click on an image to enlarge)

Glassy single Diopside crystal from the Merelani Tanzanite mines. Found as a byproduct of mining for Tanzanite, these Diopside crystals are some of the world's best. This is a good sized crystal that is well terminated and complete all around with the exception of chipping that runs halfway up one side.

LP362 - Spinel sold

Mahenge, Morogoro, Tanzania
Miniature - 4 x 3.5 x 3.5 cm

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Purple/red Spinel crystals in white matrix from Mahenge. The main crystal is good sized at 3.3cm wide. The crystals are complete all around and in great overall condition with just minor chipping. Can be displayed from a variety of angles.

LP363 - Scapolite sold

Morogoro, Tanzania
Miniature - 3.5 x 2.1 x 1.6 cm

(click on an image to enlarge)

Complete, well terminated golden Scapolite crystal with nice transparency.

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