Apophyllite
Apophyllite is a mineral with the chemical formula KCa4Si8O20·8H2O. It has a Mohs hardness of 4.5 - 5 and vitreous to pearly luster.
Apophyllite properties
| Type | Mineral |
|---|---|
| Chemical formula | KCa4Si8O20·8H2O |
| Mohs hardness | 4.5 - 5 |
| Luster | Vitreous to pearly |
| Typical colors | Colorless, white, green, pink, or gray |
| Formation | Typically forms in volcanic rocks and as a result of the alteration of other minerals in hydrothermal veins. |
| Rarity | 5 / 10 |
Mohs hardness 4.5–5 — medium
1 · Talc5 · Apatite10 · Diamond
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