Orpiment
Orpiment is a mineral with the chemical formula As2S3. It has a Mohs hardness of 1.5 - 2 and resinous to pearly luster.
Orpiment properties
| Type | Mineral |
|---|---|
| Chemical formula | As2S3 |
| Mohs hardness | 1.5 - 2 |
| Luster | Resinous to Pearly |
| Typical colors | Yellow to orange |
| Formation | Typically forms in hydrothermal veins and as sublimates from volcanic gases |
| Rarity | 6 / 10 |
Mohs hardness 1.5–2 — very soft
1 · Talc5 · Apatite10 · Diamond
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