> 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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