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Langbeinite
Langbeinite

Augite
Augite



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Langbeinite
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Augite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Slowly dissolves in water
-
-9999
Conchoidal
None
3.5-4
K2Mg2(SO4)3
 
-
-
-
3.19-3.56
Uneven, Conchoidal
{110} Perfect, {010} Indistinct
5.5-6
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)