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Chrome-Chalcedony
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Tugtupite
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Chrome-Chalcedony
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Tugtupite
Chrome-Chalcedony
Tugtupite
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Summary
Astrology
Physical Properties
Optical Properties
Benefits
All
Physical Properties
Tenacity
Solubility
Durability
Specific Gravity
Fracture
Cleavage
Mohs Hardness
Chemical Composition
-
-
-
2.55-2.70
-
None
6.5-7
SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
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-
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2.30-2.60
Uneven, Conchoidal
{111} Imperfect
5.5-6
Na 4AlBeSi 4O 12ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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