The name "dioptase" comes from Greek and references the visibility of the twin cleavage plains within the characteristically translucent, brilliantly emerald green crystals of this rare copper cyclosilicate mineral. This specimen boasts a glistening coating of beautifully gemmy dioptase crystals almost completely covering the face of the matrix.

Dimensions: 2-3/4"W x 2-1/2"D x 1-3/8"H, Weight: 89.31 g