2.6" Sparkling Dioptase Crystals on Glassy Quartz - Sanda, Congo

Sparkling Dioptase Crystals on Glassy Quartz - Sanda, Congo #306098

This is a beautiful cluster of dioptase crystals and glassy quartz, collected from the Sanda Hills occurrences (Sanda mine) in the Republic of the Congo. This mine has been closed since 2019, so this material is old stock. The entire specimen is 2.6" wide and the dioptase is an alluring emerald-green color. The white mineral is unidentified.

Comes with an acrylic display stand.

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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