arsenopyrite from china or indonesia. natural mineral stone on a black background surrounded by moss. mineralogy

stone mineral arsenopyrite rock specimen crystal geology isolated pyrite ore sample white aggregate arsenic cluster crystalline hydrothermal metallic mineralogy treasure natural background metal nature matrix mine pegmatite slovakia calcite closeup silver clinochlore chondrodite rhodusite set nephelite spreushtein green raw macro nepheline sanidine science aegirine tumbled mica geological natrolite texture collection