
Physical & Chemical Properties
| Name | Ametrine |
|---|---|
| Scientific Name | Quartz |
| Mineral Group | Quartz Group |
| Hardness (Mohs) | 7 |
| Color | Purple, violet, yellow, golden-yellow, orange-yellow |
| Origin | Bolivia (Anahí Mine – primary source), Brazil, India |
| Chemical Formula | SiO₂ (Silicon Dioxide) |
| Crystal System | Trigonal |
|---|---|
| Specific Gravity | 2.65 |
| Birthstone | None |
| Refractive Index | 1.544 – 1.553 |
| Optical Character | Uniaxial (+) |
| Dispersion | Uniaxial (+) |
| Major Sources | olivia (Anahí Mine – primary source), Brazil, India |
| Treatments | Most Ametrine available in the market is natural, but some stones are heat-treated or artificially produced to mimic the natural color zoning. |
| Price Range | $3–$60 |
| Care Instructions | Avoid prolonged exposure to strong sunlight (may fade color) Clean with mild soap and lukewarm water Avoid harsh chemicals and ultrasonic cleaners |
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