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Violane
Violane

Narsarsukite
Narsarsukite



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Violane
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Narsarsukite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.22-3.40
Conchoidal
Perfect
5-6
(Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)
 
Brittle
-
-
2.72-2.83
Uneven
Good on {100} and {110}
6-7
Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.