Name | QUARTZ | Variety | QUARTZ-HEDENBERGITE | Origin | Huanggang Mine (Inner Mongolia) China | Hardness | 7 | Composition | SiO2 | Crystaline sys. | HEXAGONAL
| Size | 6,5x1,9x1 cm | Weight | 9 g |
Description:
Quartz was chosen by the geologist Friedrich Mohs to represent grade 7 in his famous scale of hardness dating back to 1825, and which is still valid nowadays. The color of this varietal is due to multiple inclusions of hedenbergite, a green/black-coloured varietal of diopside. |
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QUARTZ
VARIETY QUARTZ-HEDENBERGITE
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