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
Did you know?

Most minerals take ages to form in untouched rock, but rosasite can be a child of mining itself. Some of it is post-mine, crystallizing inside the tunnels only after miners had opened the deposit to air and water.