2.1" Dioptase Crystals on Quartz - Kimbedi, Congo

Dioptase Crystals on Quartz - Kimbedi, Congo #148472

These are gemmy dioptase crystals on a quartz encrusted matrix, collected from the Kimbedi area of the Republic of the Congo. The entire specimen is 2.1" long and the crystals are a lustrous, deep emerald-green color. Some of the quartz crystals have dioptase crystal inclusions.

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 centimeters 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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