Albert Lleal / Orpiment, a sulphide of arsenic, from Greece
01346276
John Cancalosi / Orpiment, an ore of arsenic. Sample from Shimen Mine, Hunan, China.
01318798
John Cancalosi / Realgar crystals [AsS / Arsenic sulfide (red)] on Orpiment [As2S3 / Arsenic tri sulfide (yellow)] from the Palomo mine, Huancavelica, Peru, Both are ores of arsenic
![Realgar crystals [AsS / Arsenic sulfide (red)] on Orpiment [As2S3 / Arsenic tri sulfide (yellow)] from the Palomo mine, Huancavelica, Peru, Both are ores of arsenic](http://nplimages.infradoxxs.com/cache/tcache/01318798.jpg "Realgar crystals [AsS / Arsenic sulfide (red)] on Orpiment [As2S3 / Arsenic tri sulfide (yellow)] from the Palomo mine, Huancavelica, Peru, Both are ores of arsenic")