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 porphyrite shooting chrome aegirine variolite silver gray mica polished ornamental sanidine macro nephelite structure chessylite riebeckite tumbled epidote natrolite green