Libethenite
Libethenite
– Cu2(PO4)(OH)
Fluorite
Talc (1)Diamond (10)
Softer than glass. A steel knife scratches it.
Did you know?
Libethenite mimics the bright green of fine emerald, but its origin is humble: it grows near the surface where acidic water frees phosphorus from old rock and binds it to copper.
