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Chrome-Chalcedony
Chrome-Chalcedony

Tugtupite
Tugtupite



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Chrome-Chalcedony
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Tugtupite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
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-
-
2.55-2.70
-
None
6.5-7
SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)
 
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2.30-2.60
Uneven, Conchoidal
{111} Imperfect
5.5-6
Na 4AlBeSi 4O 12ClMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references