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Labradorite
Labradorite

Chrome Tourmaline
Chrome Tourmaline



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Labradorite
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Chrome Tourmaline
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.69-2.72
Uneven, Conchoidal
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
6-6.5
(Na,Ca)1-2Si3-2O8
 
-
-
-
2.85-3.35
Conchoidal
3,2
7-7.5
Tourmaline is a series of several different minerals with unique chemical formulas.