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Chrome Tourmaline
Chrome Tourmaline
☒

Datolite
Datolite
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Chrome Tourmaline
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Datolite
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.
 
Brittle
-
-
2.90-3.00
Conchoidal, Uneven
None
5-5.5
CaBSiO 4(OH)Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references