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> Minerals
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Smoky quartz
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| Smoky Quartz
 Mooralla, Southern Grampians Shire, Victoria, Australia
Item-No.: MIN6045
Price: 65.00 EUR
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| Smoky quartz
Přibyslavice near Velká Bíteš, Czech Republik
Item-No.: MINS1511
Price: 14.00 EUR
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| Synonyms: |
Cairngorm, Cairngorum Stone, Colorado Diamond, Quarzo affumicato, Smoky Topaz, Ouro Verde Quartz, Radium Diamond |
| Variety of: |
Quartz |
| Classification: |
Oxides |
| Chemical formula: |
SiO2 |
| Crystal system: |
Trigonal |
| Density (g/cm3): |
2,65 |
| Tenacity: |
Brittle |
| Cleavage: |
none |
| Fracture: |
Conchoidal |
| Hardness (Mohs): |
7 |
| Colour: |
gray, brown, black |
| Lustre: |
Vitreous |
| Streak: |
White |
| Application: |
famous as a semi precious jewelry stone |
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