Marcasite
Marcasite is a mineral with the chemical formula FeS2. It has a Mohs hardness of 6-6.5 and metallic luster.
Marcasite properties
| Type | Mineral |
|---|---|
| Chemical formula | FeS2 |
| Mohs hardness | 6-6.5 |
| Luster | Metallic |
| Typical colors | Pale brass-yellow to bronze-yellow |
| Formation | Typically forms in sedimentary rocks and is often associated with pyrite |
| Rarity | 3 / 10 |
Mohs hardness 6–6.5 — fairly hard
1 · Talc5 · Apatite10 · Diamond
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