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Chrome Tourmaline
Chrome Tourmaline

Apophyllite
Apophyllite



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Chrome Tourmaline
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Apophyllite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.85-3.35
Conchoidal
3,2
7-7.5
Tourmaline is a series of several different minerals with unique chemical formulas.
 
-
-
-
2.30-2.50
Uneven
Perfect on (001)
4.5-5
KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.