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3 specimens listed
Page   1 |

Dioptase
stock #21.1-192
Sanda Hills, Mindouli, Mindouli District
Pool Department, Republic of Congo (Brazzaville)
2.4 x 1.4 x .9 CM (thumbnail)
price: $490


A very bright "treelike" Dioptase thumbnail in fine condition. From the recent finds in former Brazzaville (Republic of Congo) which had produced some excellent specimens, some of which, like this one, have unusual yet eye-catching esthetics. In excellent condition, the tiny spray of Dioptase crystals on the display side are all well-terminated and undamaged. The backside has some contacts but still no damage.

HOLD Dioptase
stock #HOLD 21.1-191
Sanda Hills, Mindouli, Mindouli District
Pool Department, Republic of Congo (Brazzaville)
2.6 x 1.2 x .6 CM (thumbnail)
price: $360
Late Summer 2021

A killer thumbnail of gemmy Dioptase in elongated crystals. In perfect condition and with excellent form, this is from the recent finds in the Sanda Hills of the Republic of Congo. The Dioptase is all translucent and the termination areas are also transparent. The whole piece has a glassy-bright luster. It is hard to fully appreciate or see the rich emerald color of these crystals on a computer but the color in person is rich and saturated.

Fornacite on Dioptase (Type Locality)
stock #20-FC-115
Reneville Mine, Reneville Kindanba District
Pool Department, Republic of Congo (Brazzaville)
4 x 3.3 x 2.5 CM (miniature)
price: $1600
Spring 2020

Fantasticly rich, dense clusters of Fornacite crystals on Dioptase crystals. Fornacite is a rather rare mineral but nearly always seen just as micros with very small isolated crystals. This is an amazingly rich specimen with eye visible crystals in groups that are up to 2.5 CM across! The matrix is an attractive mix of Dioptase crystals and balls of Plancheite. The crystals are lath shaped and many are free standing, most are a dark olive green ranging to as brownish yellow with backlight. Under strong magnification a few dark green balls are seen that may be Mottramite but are not identified. From the type locality, this is a superb and important piece for this rarely displayed mineral. None of us have ever seen any piece with so much of the specie and so easily seen.