THE MATERIAL LIBRARY
Chrysocolla
A copper-bearing material often mixed with quartz and other minerals.
Colors & patterns
Blue, turquoise and green, frequently with brown or dark matrix.
Typical origins
Sources include Peru, the United States and several copper-mining regions worldwide.
Hardness
Variable; pure material is soft, quartz-rich material harder
Choosing & setting this material
Durability depends strongly on the amount of silica and any stabilization. Ask whether a cab is quartz-rich gem silica, a composite rock or treated chrysocolla.
Care & cleaning
Clean gently with lukewarm water, a little mild soap and a soft cloth, then dry. Avoid steam, ultrasonic cleaners, harsh chemicals and sudden temperature changes, especially when treatments are unknown.
Origins above describe typical sources of the material, not the origin of an illustrated or stocked stone. Hardness measures scratch resistance, not resistance to breaking. Confirm the identity and treatments of the actual piece.
Further reading: Material reference · GIA: gem treatments