2.5" Dark Green Dioptase Formation - N'tola Mine, Congo

This is a dark green formation of dioptase that was collected from the N'tola Mine of the Republic of the Congo. This mine has been closed since 2019, so this material is old stock.

Dioptase is an uncommon mineral found mostly in desert regions where it forms as a secondary mineral in the oxidized zone of copper sulfide mineral deposits. This copper based mineral forms small rhombohedral crystals, typically less than 0.75 cm in length.
It is popular with mineral collectors due to its vibrant color and it is occasionally cut into small emerald-like gems.



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DETAILS
SPECIES
Dioptase
LOCATION
N'tola Mine, Mindouli, Mindouli District, Pool Department, Republic of the Congo
SIZE
2.5 x 1.3"
CATEGORY
ITEM
#209675