Quartz (hand specimen)
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Description / Synopsis
Common Forms/Occurrences: Occurs in large masses in veins and pegmatites Useful Identification Test: Insoluble in acids except HF; soluble in molten Na2CO3 Chemical formula: SiO2 Crystal System: Hexagonal prism and pyramids Colour: Usually colourless, white, or gray. Uncommon varieties occur in all colours Streak: White Lustre: Nonmetallic (NM); Greasy Cleavage: No cleavage Fracture: Conchoidal Hardness: 7 Hardness Search: seven Specific Gravity: 2.7 |
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Related Item
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Local Identifier
rm0029
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Handle
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Use and Reproduction
Subject to the Copyright Act
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au_766.jpg1.79 MB
Cite this
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English
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| Name |
Quartz (hand specimen)
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image/jpeg
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1875913
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2928px
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1952px
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