Rosasite

Rosasite – CuZn(CO3)(OH)2
Elements: Copper, Zinc, Carbon, Oxygen, Hydrogen
Class: Carbonates
Crystal System: Monoclinic
Hardness: 4
Fluorite
Talc (1)Diamond (10)
Softer than glass. A steel knife scratches it.
Origin: Ojuela Mine, Mapimi, Durango – Mexico