Orpiment is a deep orange-yellow colored arsenic sulfide mineral with formula As2S3,  It is found in volcanic fumaroles, low temperature hydrothermal veins, and hot springs and is formed both by sublimation and as a byproduct of the decay of another arsenic mineral, realgar.

Color : Orange-yellow to lemon-yellow to brownish-yellow

Lustre : Resinous or pearly, transparent or translucide

Hardness : 1.5 - 2 on the Mohs scale. Read More...




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Orpiment-01- Quiruvilca Mine Peru
Found in the early '70s, this yellow-orange crystallized Orpiment sample comes from the Quiruvilca m..
$180.00 USD
Ex Tax: $180.00 USD
Orpiment-02- Quiruvilca Mine Peru
Orpiment from the Quiruvilca mine, Quiruvilca District, Santiago de Chuco Province, La Lib..
$0.00 USD
Ex Tax: $0.00 USD