Apache Tear
Apache Tear is a gemstone with the chemical formula SiO2. It has a Mohs hardness of 5.5 - 7 and vitreous to greasy luster.
Apache Tear properties
| Type | Gemstone |
|---|---|
| Chemical formula | SiO2 |
| Mohs hardness | 5.5 - 7 |
| Luster | Vitreous to greasy |
| Typical colors | Black to dark brown, often with translucent inclusions |
| Formation | Forms from volcanic ash that has undergone intense heat and pressure |
| Rarity | 6 / 10 |
Mohs hardness 5.5–7 — hard
1 · Talc5 · Apatite10 · Diamond
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