Dioptase from the Congo

New Dioptase specimens from the Mindouli District of the Congo.  These have a number of interesting features, including rounded dome or cup shaped formations either as part of the specimen or in 2 cases, comprising the entire specimen; wheat-sheaf like crystal growth; and associations with other minerals including Wulfenite and an unidentified globular green mineral.


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J762 - Dioptase $ 1250
 Mindouli District, Brazzaville, Congo
small cabinet - 8.5 x 7.5 x 2.5 cm


(click on an image to enlarge)

Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J762a.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J762b.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J762c.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J762d.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J762e.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J762f.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J762g.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J762h.jpg]

Slightly cup-shaped formation of solid Diptase. One side shows nothing but bright, lustrous Dioptase crystals with occasional tiny yellow Wulfenites. The other side shows cup-shaped formations of Dioptase, Dioptase crytals, and about 30% coverage of a lighter green mineral with a form of small apple-green translucent globules. This one has both a flashy, showy display side and another side that's interesting under the loupe.

J764 - Dioptase $ 650 SOLD
 Mindouli District, Brazzaville, Congo
small cabinet - 8.5 x 6 x 2.5 cm


(click on an image to enlarge)

Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J764a.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J764b.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J764c.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J764d.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J764e.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J764f.jpg]

Bright and lustrous Dioptase crystals on a tan rock matrix. This specimen has interesting crystallization with somewhat wheat-sheaf formations of Dioptase.

J765 - Dioptase $ 1250 SOLD
 Mindouli District, Brazzaville, Congo
small cabinet - 8.5 x 7 x 3 cm


(click on an image to enlarge)

Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J765a.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J765b.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J765c.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J765d.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J765e.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J765f.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J765g.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J765h.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J765i.jpg]

Cup-shaped formation of solid Diptase. One side shows nothing but bright, lustrous Dioptase crystals. The other side shows a mixture of Dioptase crytals and a lighter green mineral with a form of small apple-green translucent globules. This one has both a flashy, showy display side and another side that's interesting under the loupe.

J766 - Dioptase $ 450
 Mindouli District, Brazzaville, Congo
small cabinet - 8 x 6 x 2.3 cm


(click on an image to enlarge)

Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J766a.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J766b.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J766c.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J766d.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J766e.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J766f.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J766g.jpg]

Dense coverage of Dioptase crystals over a rock matrix. There is an unusual dome-shaped structure in one area, 2.2cm wide, of solid Dioptase crystals There are 3 generations of Dioptase crystals comprising the dome-shaped structure.

J767 - Dioptase $ 650 SOLD
 Mindouli District, Brazzaville, Congo
small cabinet - 7.5 x 5.5 x 3 cm


(click on an image to enlarge)

Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J767a.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J767b.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J767c.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J767d.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J767e.jpg] Dioptase from Mindouli District, Brazzaville, Congo [db_pics/pics/J767f.jpg]

Bright and lustrous Dioptase crystals on a hard rock matrix. This specimen has interesting crystallization with somewhat wheat-sheaf formations of Dioptase.

J768 - Dioptase with Wulfenite $ 600
 Mindouli District, Brazzaville, Congo
small cabinet - 7 x 6 x 4 cm


(click on an image to enlarge)

Dioptase with Wulfenite from Mindouli District, Brazzaville, Congo [db_pics/pics/J768a.jpg] Dioptase with Wulfenite from Mindouli District, Brazzaville, Congo [db_pics/pics/J768b.jpg] Dioptase with Wulfenite from Mindouli District, Brazzaville, Congo [db_pics/pics/J768c.jpg] Dioptase with Wulfenite from Mindouli District, Brazzaville, Congo [db_pics/pics/J768e.jpg] Dioptase with Wulfenite from Mindouli District, Brazzaville, Congo [db_pics/pics/J768f.jpg]

Bright and lustrous Dioptase crystals on a tan rock matrix. This specimen has interesting crystallization with somewhat wheat-sheaf formations of Dioptase intermixed with small yellow Wulfenite crystals. Saw cut on base.

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