Ametrine
Ametrine is a gemstone with the chemical formula SiO2. It has a Mohs hardness of 7 on the Mohs scale and vitreous luster.
Ametrine properties
| Type | Gemstone |
|---|---|
| Chemical formula | SiO2 |
| Mohs hardness | 7 on the Mohs scale |
| Luster | Vitreous |
| Typical colors | Purple and yellow/orange (often shows a natural zoning) |
| Formation | Typically formed in hydrothermal veins and alluvial deposits |
| Rarity | 7 / 10 |
Mohs hardness 7 — hard
1 · Talc5 · Apatite10 · Diamond
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