Marin Mineral
TUCSON 2011
February 27, 2011  ·  23 specimens

AF812 - Sapphire on Scapolite  sold

Mpwapwa, Tanzania
Small Cabinet - 6 x 2.5 x 2.5 cm



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Sapphire on Scapolite Sapphire on Scapolite Sapphire on Scapolite Sapphire on Scapolite

This is the best specimen from a small number of specimens available from this new find. Glassy pink Sapphire crystals to 1.5cm in size on a etched yellow Scapolite crystal. The Sapphires have a subtle pink hue, similar to rose quartz. A beautiful and unusual piece that was head and shoulders above the approximately 10 other pieces available.


AF813 - Ruby  sold

Montepuez, Mozambique
Thumbnail - 1.6 x 1.6 x 0.3 cm



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Ruby Ruby Ruby

Glassy, transparent Ruby crystal. Wafer-like crystal with triangular growth patterns on the faces.


AF814 - Ruby  sold

Montepuez, Mozambique
Thumbnail - 1.9 x 1.8 x 0.5 cm



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Ruby Ruby

Glassy, transparent Ruby crystal. Wafer-like crystal with triangular growth patterns on the faces. The largest crystal of the lot.


AF815 - Alexandrite  sold

Lake Manyara, Tanzania
Thumbnail - 0.9 x 0.7 x 0.3 cm



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Alexandrite Alexandrite Alexandrite

Single untwinned Alexandrite, gemmy with good crystal form.


AF484 - Alexandrite  sold

Lake Manyara, Tanzania
Thumbnail - 1.3 x 1.1 x 0.6 cm



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Alexandrite Alexandrite

V-twin Alexandrite crystal, gemmy with good crystal form. Chunky floater crystal with no damage or points of attachment. Purple and green color. These were found some time ago and have not been seen since.


AF817 - Zircon  sold

Mashewa, Tanga Region, Tanzania
Thumbnail - 2 x 0.7 x 0.7 cm



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Zircon Zircon

Single gemmy Zircon crystal with a nice wine red to red brown coloration and much better transparency than most from this find. Complete and undamaged except the slightest edge wear and interesting multi-faceted termination.

AF818 - Zircon  sold

Mashewa, Tanga Region, Tanzania
Thumbnail - 2 x 0.9 x 0.6 cm



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Zircon Zircon Zircon

Single gemmy Zircon crystal with a nice wine red to red brown coloration and much better transparency than most from this find. Complete and undamaged, but with some natural indentations in one area, likely caused by the inclusions of unidentified white crystals that are occasionally found in the Zircons from this area (and present in this crystal).


AF819 - Zircon  sold

Mashewa, Tanga Region, Tanzania
Thumbnail - 1.9 x 0.9 x 0.7 cm



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Zircon Zircon Zircon Zircon

Single gemmy Zircon crystal with a nice wine red to red brown coloration and much better transparency than most from this find. Complete and undamaged except the slightest edge wear.

AF820 - Zircon  sold

Mashewa, Tanga Region, Tanzania
Thumbnail - 2 x 0.7 x 0.6 cm



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Zircon Zircon

Single orange/brown Zircon crystal with good crystal form. A well formed, complete and undamaged Zircon crystal.  INterestingly, there are shallow indentations on the crystal surfaces from crystals of an unidentified mineral that were formerly attached and have since etched away.


AF822 - Chrysoberyl  sold

Lost Hope Mine, Karoi, Zimbabwe
Thumbnail - 1.2 x 1 x 0.9 cm



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Chrysoberyl Chrysoberyl Chrysoberyl

No, this is not Brazilian; this little gem dates back to the 1980s and was included in a small lot of blue Euclase I purchased. Though the mine is most famous for Euclase, these sixling Chrysoberyls were also occasionally found, most about this size.


AF823 - Tsavorite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 1.6 x 1.3 x 1 cm



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Tsavorite Tsavorite Tsavorite

Complete, glassy Tsavorite crystal. One tiny ding present on one face, otherwise undamaged - even the bottom faces are crystallized, though show the indentations from the thin blades of Graphite the crystal formed upon.


AF824 - Tsavorite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 1.7 x 1.2 x 0.9 cm



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Tsavorite Tsavorite Tsavorite

Glassy and gemmy Tsavorite crystal with excellent green color.


AF825 - Tsavorite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 1.2 x 1.0 x 1 cm



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Tsavorite Tsavorite

Glassy light green Tsavorite crystal with good luster. Mostly complete crystal with some indentations in back where other crystals intergrew, and some Graphite on the bottom where it was attached to matrix.


AF480 - Enstatite  sold

Kilosa, Tanzania
Thumbnail - 1.6 x 0.6 x 0.6 cm



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Enstatite Enstatite

Transparent, brown Enstatite crystal with good luster and nicely terminated. Crystals from this find are usually only suitable for facet rough as most are unterminated and etched, in fact this crystal was pulled from facet rough.


AF828 - Enstatite  sold

Kilosa, Tanzania
Thumbnail - 2.1 x 1.2 x 0.9 cm



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Enstatite Enstatite Enstatite

Transparent, brown Enstatite crystal - 21 carats of facet quality crystal, nicely terminated. Crystals from this find are usually only suitable for facet rough as most are unterminated and etched, in fact this crystal was pulled from facet rough. The crystal has slightly etched surfaces and a notch towards the bottom where another mineral was likely formerly present and later etched away.


AF829 - Enstatite  sold

Kilosa, Tanzania
Thumbnail - 1.8 x 0.7 x 0.6 cm



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Enstatite Enstatite

Transparent, brown Enstatite crystal with good luster and a good, though slightly etched, termination. Crystals from this find are usually only suitable for facet rough as most are unterminated and etched, in fact this crystal was pulled from facet rough. Complete all around and undamaged.


AF830 - Enstatite  sold

Kilosa, Tanzania
Thumbnail - 2.2 x 0.8 x 0.8 cm



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Enstatite Enstatite

Transparent, brown Enstatite crystal with good luster and a good, though slightly etched, termination. Crystals from this find are usually only suitable for facet rough as most are unterminated and etched, in fact this crystal was pulled from facet rough.


AF832 - Tremolite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 1.5 x 1.5 x 0.8 cm



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Tremolite Tremolite

Bright lime green Tremolite crystal with an amzingly flat and glassy termination. These are occassionally found at Merelani and set the standard for Tremolite.


AF833 - Tremolite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Miniature - 3.3 x 1.5 x 0.7 cm



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Tremolite Tremolite

Bright lime green, terminated Tremolite crystal. These are occassionally found at Merelani and set the standard for Tremolite. There are some unidentified white crystals and a tiny speck of Pyrite attached at the base.


AF834 - Tremolite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 1.7 x 1.3 x 0.7 cm



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Tremolite Tremolite

Bright lime green Tremolite crystal with good termination, flat and glassy. These are occassionally found at Merelani and set the standard for Tremolite. Valued at $150.


AF836 - Tremolite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 1.3 x 1.0 x 0.8 cm



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Tremolite Tremolite

Bright lime green, terminated Tremolite crystal with an amazingly flat and glassy termination. These are occassionally found at Merelani and set the standard for Tremolite.


AF837 - Chrome Tourmaline  sold

Landani, Tanzania
Thumbnail - 2.3 x 2.0 x 1.5 cm



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Chrome Tourmaline Chrome Tourmaline Chrome Tourmaline

Superb gem quality crystal. Known as \"Chrome\" Tourmaline, it is actually a vanadium rich Uvite/Dravite. These are uncommon to find and this is of excellent quality, though dark green, backlighting reveals the high transparency, like green glass, 53 carats in weight.


AF841 - Sphalerite with Pyrite and Calcite (?)  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 1.8 x 1.7 x 1.6 cm



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Sphalerite with Pyrite and Calcite (?) Sphalerite with Pyrite and Calcite (?) Sphalerite with Pyrite and Calcite (?)

Translucent red Sphalerite crystal, only the second Sphalerite I have seen from Merelani. The top of the crystal is partially coated by Pyrite, atop which are what I beleive to be Calcite crystals which have an unusual \"wheatsheaf\" habit. This would be a nice addition to a Merelani suite.


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