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4 specimens found
1 |

Braunite (exceptional) with Andradite, Calcite
stock #Alec 14-263
N'Chwanning111 Mine, Kahlahari Mg Filed,
Kuruman, South Africa
10.2 x 6.5 x 3.6 CM (cabinet)
price: $900
Spring 2014

A superb, large, well crystallized plate of this very rare mineral with unusually big and super lustrous crystals. The Braunites are clustered on a matrix that also host some bright, glassy calcite crystals and a few clusters of Andradite. This is simply the best specimen of this mineral I have seen for sale. Braunites reach .8CM size most of which are perfectly undamaged tho there is some chipping best noted with magnification. The overall quality and size for this rare specimen is simply extraordinary.
Jacobsite on and in Calcite (exceptional)
stock #Alec 14-261
N'Chwanning II Mine, Kalahari Manganese Filed
Kuruman, South Africa
7.5 x 5.8 x 4 CM (cabinet)
price: $950
Spring 2014

A world class specimen of this rare mineral! Big (up to 7CM) Calcite crystals are the matrix for hundreds of sparkling, lustrous Jacobsite crystals. Jacobsite is rarely found much bigger than micro sized. The best come from the Kalahari and this has by far the best esthetics I have ever seen. Sharp, bright groups of silvery-black crystals are nicely scattered on the contrasting Calcite. The Calcite is in excellent condition and the dark Jacobsite can be clearly seen inside the crystals. Rare black minerals are reputed to be ugly, this is not!
Olmiite with Calcite
stock #14-14-260
N'chwaning Mine, Kalahari Fields, Kuruman
Kuruman, South Africa
9 x 6.8 x 6 CM (cabinet)
price: $1250
Spring 2014

A large and esthetic 3-D cluster of Olmiite in "wet look" aggregates with a pinkish color. Far better that the average, this is an even more special specimen due to the well placed clear clusters of Calcites in parallel growth. The calcite is in doubly terminated prisms that look very much like quartz and have similar glassy luster. Olmiite was unknown as a mineral until 2006, it is only found at this one location worldwide. This piece displays well, is undamaged and presents from several angles.
Olmite (poldervartite)
stock #12.1-134
N'chwaning Mine, Kalahari Fields, Kuruman
Kuruman, South Africa
5.3 x 3.1 CM (miniature)
price: $110
Spring 2013

A single bright and well formed crystal of Olmiite is nicely perched on the Manganese matrix. Fine condition and well presented, this is a nice single crystal (1.2 CM) on matrix that shows great color, form and luster well. Not just a ball this has well defines crystal faces unlike most specimens. This find has produced many forms of this rare mineral, it is a great time to get examples of this esthetic specie while they are still affordable.
4 specimens found
1 |