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Mexican fire opal
Mexican fire opal

Tremolite
Tremolite



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Mexican fire opal
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Tremolite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
None
-9999
SiO2·nH2O
 
Brittle
-
-
2.95-3.07
Conchoidal
Perfect on {110} at 56° and 124°; partings on {010} and {100}
5-6
Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.