orpiment mineral - arsenic sulfide

abstract aggregate arsenic auripigment background bright chalcogenide chemistry close closeup collect collection color colorful crystal decorative diamond fragile gem gemological gemology gemstone geologic geology gold isolated jewel jewelry lamellar layered luxury macro material mineral mineralogy nacreous natural nature opaque orange ore orpiment pattern pigment poisonous precious raw realgar rock sample science shine showpiece specimen stone structure sulfide texture treasure uncut unpolished yellow