Listing ID #3363495
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Contact SupplierChemical Classification | Silicate |
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Color | Quartz occurs in virtually every color. Common colors are clear, white, gray, purple, yellow, brown, black, pink, green, red. |
Streak | colorless (harder than the streak plate) |
Luster | vitreous |
Diaphaneity | transparent to translucent |
Cleavage | none - typically breaks with a conchoidal fracture |
Mohs Hardness | 7 |
Specific Gravity | 2.6 to 2.7 |
Diagnostic Properties | conchoidal fracture, glassy luster, hardness |
Chemical Composition | SiO2 |
Crystal System | hexagonal |
Uses | glass making, abrasive, foundry sand, hydraulic fracturing proppant, gemstones |