Herkimer Diamond
Herkimer Diamond is a crystal with the chemical formula SiO2. It has a Mohs hardness of 7 and vitreous luster.
Herkimer Diamond properties
| Type | Crystal |
|---|---|
| Chemical formula | SiO2 |
| Mohs hardness | 7 |
| Luster | Vitreous |
| Typical colors | Colorless or light gray, sometimes with inclusions |
| Formation | Formed in dolostone cavities over millions of years |
| Rarity | 6 / 10 |
Mohs hardness 7 — hard
1 · Talc5 · Apatite10 · Diamond
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