Marin Mineral
Merelani Gem Crystals
April 14, 2010  ·  13 specimens

AF362 - Tanzanite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Miniature - 3.5 x 1.3 x 1 cm



(click on an image to enlarge)

Tanzanite Tanzanite Tanzanite

Elongated single yellow crystal. Glassy luster and internally gemmy throughout. Fine undamaged crystal.


AF628 - Tsavorite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Miniature - 3.3 x 3 x 1.7 cm



(click on an image to enlarge)

Tsavorite Tsavorite

Rare matrix Tsavorite specimen with a 1.2cm deep green Tsavorite in a matrix of Graphite, Quartz and massive Tsavorite. These matrix specimens show up very infrequently.


AF629 - Tanzanite (R)  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 3 x 1.7 x 1.5 cm



(click on an image to enlarge)

Tanzanite (R) Tanzanite (R)

Bi-colored Tanzanite in a cluster, both of which are uncommon. The specimen is undamaged but has been priced way down because the small crystal has been reattached (though you cannot see any gaps or evidence).


AF631 - Tanzanite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 0.8 x 0.6 x 0.4 cm



(click on an image to enlarge)

Tanzanite Tanzanite

Small, gemmy crystal of a rare color - hot pink on the main face and peach colored on the narrow face Gemmy and complete crystal.


AF632 - Tanzanite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 2.4 x 0.4 x 0.3 cm



(click on an image to enlarge)

Tanzanite Tanzanite

Long skinny single crystal, terminated and undamaged.


AF633 - Tanzanite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 3.1 x 2 x 1.1 cm



(click on an image to enlarge)

Tanzanite Tanzanite Tanzanite Tanzanite

Gem quality single crystal, purple on the wide faces and a color zoned blue and green when viewed from the side faces. Partially double terminated, undamaged except for one small nick on one edge. Good color and top to bottom transparency, which is uncommon.


AF634 - Tanzanite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 1.6 x 0.5 x 0.4 cm



(click on an image to enlarge)

Tanzanite Tanzanite

Unusually colored light lavender crystal, gemmy.


AF635 - Tanzanite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 1.5 x 0.7 x 0.5 cm



(click on an image to enlarge)

Tanzanite

Rare fan shaped cluster of Tanzanite. Small, but this formation is very uncommon.


AF636 - Tanzanite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 1.9 x 0.4 x 0.3 cm



(click on an image to enlarge)

Tanzanite

Double terminated bi-color, gemmy purple with yellow tips - I've never seen one like this before, double term crystals are very rare, and the yellow ends make this one a real collectors item. Fine undamaged crystal.


AF637 - Magnesio-axinite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Small Cabinet - 5.9 x 4.5 x 1.3 cm



(click on an image to enlarge)

Magnesio-axinite Magnesio-axinite Magnesio-axinite

Large thick crystal with gem zones. This piece demonstrates an great color change from blue in daylight to purple in incandescent lighting.


AF638 - Tanzanite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 2.2 x 1.4 x 1 cm



(click on an image to enlarge)

Tanzanite Tanzanite

Bi-colored (yellow/blue) crystal cluster, undamaged with a bit of Pyrite at the base.


AF639 - Tanzanite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 1.4 x 0.8 x 0.7 cm



(click on an image to enlarge)

Tanzanite Tanzanite

Single gem crystal, facet grade throughout the entire crystal. Note that there are small Calcite crystals on one side that show up in the photos - don't confuse these with any internal problems or surface blemishes, this is facet grade, exceptionally gemmy. Fine undamaged crystal. Was listed on my website at $400 due to the fine quality.


AF640 - Tanzanite  sold

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
Thumbnail - 1.5 x 0.7 x 0.6 cm



(click on an image to enlarge)

Tanzanite Tanzanite

Single pink Tanzanite (rare color), complete, with a small amount of attached Graphite.


« All updates
©2026 Marin Mineral