Marin Mineral
Tanzanian Gem Crystals
January 17, 2017  ·  14 specimens

T276 - Diopside  sold

Merelani Hills, Arusha, Tanzania
Thumbnail - 3 x 1 x 0.5 cm



(click on an image to enlarge)

Diopside Diopside Diopside

Rich chrome green Diopside crystal from the famous December 2007 find that produced Diopsides with a vivid, rich green color, far and away better than average Merelani Diopside. This is a fine single crystal complete all around with good luster. Undamaged.


T277 - Diopside  sold

Merelani Hills, Arusha, Tanzania
Miniature - 3.4 x 1 x 0.6 cm



(click on an image to enlarge)

Diopside Diopside Diopside

Rich chrome green Diopside crystal from the famous December 2007 find that produced Diopsides with a vivid, rich green color, far and away better than average Merelani Diopside. This is a fine single crystal complete all around with good luster. Undamaged with slight intergrowths of Graphite on one side.


T278 - Diopside  sold

Merelani Hills, Arusha, Tanzania
Thumbnail - 2.6 x 1.2 x 1 cm



(click on an image to enlarge)

Diopside Diopside Diopside Diopside

Unusual etched chrome green Diopside crystal. This was mined in 2016 and was the only one like it I saw, or have ever seen. The color is incredible and it is fully transparent facet grade.


T279 - Tanzanite  sold

Merelani Hills, Arusha, Tanzania
Miniature - 3.5 x 3 x 1.5 cm



(click on an image to enlarge)

Tanzanite Tanzanite Tanzanite

Unusual deep blue Tanzanite crystal with a bubbly green/brown mineral attached the sides and back. On the backside, underneath this mineral, are Prehnite crystals. Complete and undamaged.


T280 - Scapolite  sold

Morogoro, Tanzania
Miniature - 4 x 3.5 x 3 cm



(click on an image to enlarge)

Scapolite Scapolite Scapolite

Red cat's-eye Scapolite crystal, complete all around and undamaged. The cat's-eye shimmer can be seen when held sideways under a light. These red crystals are rare to find and this is the best one I've ever had.


T281 - Scapolite  sold

Morogoro, Tanzania
Thumbnail - 3 x 2.1 x 1.6 cm



(click on an image to enlarge)

Scapolite Scapolite Scapolite

Bi-color Scapolite crystal that is half red and cat's-eye and half transparent and golden. Complete all around and undamaged except for one small nick on a termination edge. The cat's-eye shimmer can be seen when held sideways under a light. These red crystals are rare to find and this is only one of 3 I've ever had the chance to buy.


T282 - Tsavorite, Graphite in Quartz  sold

Merelani Hills, Arusha, Tanzania
Miniature - 3.6 x 2.4 x 2 cm



(click on an image to enlarge)

Tsavorite, Graphite in Quartz Tsavorite, Graphite in Quartz Tsavorite, Graphite in Quartz Tsavorite, Graphite in Quartz

Complete and undamaged double-terminated Quartz crystal with inclusions of Graphite and Tsavorite. The Graphite occurs as 3 distinct platy crystals. The Tsavorite crystals are spread out inside the Quartz with one exposed at the surface. A Merelani rarity.


T285 - Apatite  sold

Namalulu, Tanzania
Miniature - 3.5 x 2 x 1.8 cm



(click on an image to enlarge)

Apatite Apatite Apatite

An exciting new specimen of tabular blue Apatite. From the Namalulu area, which in the past has produced elongated yellow Apatite. This is only the second one like it I have seen.


T286 - Tsavorite on Diopside  sold

Merelani Hills, Arusha, Tanzania
Thumbnail - 2 x 1.5 x 1.0 cm



(click on an image to enlarge)

Tsavorite on Diopside Tsavorite on Diopside Tsavorite on Diopside

Single Diopside crystal adorned with gem like crystals of Tsavorite. Good Tsavorite on front and back. A small treasure.


T289 - Tsavorite with Graphite  sold

Merelani Hills, Arusha, Tanzania
Thumbnail - 1.3 x 1.0 x 0.8 cm



(click on an image to enlarge)

Tsavorite with Graphite Tsavorite with Graphite

Gem Tsavorite crystals to 9mm with Graphite.


T290 - Apatite, Tremolite, Graphite  sold

Merelani Hills, Arusha, Tanzania
Small Cabinet - 9 x 8 x 5 cm



(click on an image to enlarge)

Apatite, Tremolite, Graphite Apatite, Tremolite, Graphite Apatite, Tremolite, Graphite Apatite, Tremolite, Graphite

Chrome Tremolite and gem blue Apatite crystals on a matrix of Calcite, Zeolites, and Graphite. I have previously only seen loose single crystals of Tremolite and Apatite from Merelani. Here you have a single matrix specimen with both species combined.


T292 - Apatite  sold

Mahenge, Tanzania
Thumbnail - 2.8 x 1.8 x 1.3 cm



(click on an image to enlarge)

Apatite Apatite

Mining for Spinels in Mahenge in 2016 has turned up a handful of these unusually colored single Apatite crystals. I bought every one I could, which was only 4. The color is blue with a hint of green and it's very gemmy. Undamaged.


T293 - Apatite  sold

Mahenge, Tanzania
Thumbnail - 1.9 x 1.0 x 0.8 cm



(click on an image to enlarge)

Apatite Apatite

Mining for Spinels in Mahenge in 2016 has turned up a handful of these unusually colored single Apatite crystals. I bought every one I could, which was only 4. The color is blue with a hint of green and it's very gemmy. Undamaged.


T294 - Apatite  sold

Mahenge, Tanzania
Thumbnail - 2.5 x 1.0 x 0.8 cm



(click on an image to enlarge)

Apatite Apatite

Mining for Spinels in Mahenge in 2016 has turned up a handful of these unusually colored single Apatite crystals. I bought every one I could, which was only 4. The color is blue with a hint of green and it's very gemmy. Undamaged with one small contact or irregular growth on one back edge.


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