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5 specimens listed
Page   1 |

Malachite crystals on Chrysocolla
stock #7.AE-262
Kolwezi, Katanga Copper Crescent
Katanga (Shaba), Democratic Republic of Congo (Zaire)
11 x 8.4 x 5.3 CM (cabinet)
price: $790
Spring 23

Matrix of rich light green veined Chrysocolla contrasts with a dense covering of darker primary Malachite crystals. An older Kolwezi specimen, this is sizable, undamaged, lustrous and displays very well. Although the Malachite appears dark under most lighting, with strong illumination these are seen as gemmy, transparent bright green crystals. The Copper Crescent zone of the Congo is an amazing and productive area. Every few years some new habits and styles are found, this piece from one era of production is a style we do not see anymore. In my opinion, these fine quality Copper secondaries represent one of the best current values of price to quality in the modern mineral market. Carefully selected, this example is really impressive in person.

Kolwezite - early find 1978
stock #21.1-553
Kolwezi, Katanga Copper Crescent
Lualaba Province, Democratic Republic of Congo (Zaire)
5 x 4.2 x 2.4 CM (miniature)
price: $230
New Year 22

A rich specimen of Kolwezite in ball-like masses and botryoidal crusts. This was collected in 1978, before this was a described mineral specie. Still considered a rather rare mineral this is an unusual Copper and Cobalt specie. Nearly pure Kolwezite, there is a little Plancheite on the back side matrix as well. In fine condition.

Cobaltoan Calcite with Malachite
stock #20.1-269
Kolwezi, Katanga Copper Crescent
Lualaba Province, Democratic Republic of Congo (Zaire)
4 x 3.7 x 3.5 CM (small miniature)
price: $90


A small, colorful and cute specimen from the Katanga Crescent (not the more common Moroccan type). There are two separate vugs on this piece with brightly sparkling purple-pink crystals and a few sprays of green Malachite adding contrast. Some bruising on edges is noted but still a pretty and affordable small piece.

Cobaltoan Calcite
stock #16.1-002
Kolwezi, Katanga Copper Crescent
Katanga (Shaba), Democratic Republic of Congo (Zaire)
6.3 x 5.8 x 3.2 CM (cabinet)
price: $280
Pre Holiday 2017

Colorful bright specimen with rhombs to 2.4 CM, ex Victor Yount collection. In fine condition, at one edge the overgrowth of Cobaltoan Calcite has not covered the underlying Calcite rhombs and the structure is well exposed.

Cuprite (gem) w. Plancheite
stock #12.1-167
Kolwezi, Katanga Copper Crescent
Katanga (Shaba), Democratic Republic of Congo (Zaire)
5.5 x 4.3 x 3.2 CM (cabinet)
price: $280
Winter 2016-17

Sharp Cuprites to 1.8 cm are set nicely on a contrasting Malachite and Plancheite matrix. Some natural pitting on the back side but no real damage, the Cuprites are all bright translucent red when backlit. A good value and no longer available.