Dioptase from N'tola Mine, Mindouli, Mindouli District, Pool Department, Republic of the Congo - image 1
Dioptase from N'tola Mine, Mindouli, Mindouli District, Pool Department, Republic of the Congo - image 2
Dioptase from N'tola Mine, Mindouli, Mindouli District, Pool Department, Republic of the Congo - image 3
Dioptase from N'tola Mine, Mindouli, Mindouli District, Pool Department, Republic of the Congo - image 4
Dioptase from N'tola Mine, Mindouli, Mindouli District, Pool Department, Republic of the Congo - image 5

Dioptase from N'tola Mine, Mindouli, Mindouli District, Pool Department, Republic of the Congo

$1,350.00

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Beautiful, highly aesthetic matrix specimen of dioptase, mimetite, and what I am confident is duftite, though this has not been analyzed. The isolation and color of the mimetite and the contrast it creates with the sparkling dioptase is what really set this specimen apart, to me. The balance of all minerals present on the calcite matrix are extremely well proportioned and the specimen really displays dramatically, which i hope has been represented in the pictures and video. No damage to note and specimen comes included with the lucite base it is currently attached to.

***Please note shipping only available to USA at this time.

Product details

SpeciesDioptaseMimetite
SizeCabinet
Dimensions11.0 x 5.5 x 3.5 cm
Listed on07/03/2026
LocalityRepublic of the Congo, Pool Department, N'tola Mine
Current owner
Tom Ventura
Tom Ventura
13 for sale·Member since 2026

Learn more

Dioptase
Mineral guide
Learn about Dioptase
vivid emerald-green crystals with glassy luster, often on white calcite or quartz; highly collectible due to color, clarity, and brittleness.
Dioptase
Regional guide
Dioptase from N'tola Mine
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Locality guide
N'tola Mine
A collector's guide to N'tola Mine, Republic of the Congo: its geology, mining history and notable minerals, illustrated with the 30 specimens documented from this locality on EarthWonders.