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Hauyne
Hauyne

Serandite
Serandite



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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Gelatinises in acids
-
2.4-2.5
Uneven, Conchoidal
Distinct on {110}
5-6
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
 
-
-
-
3.52
-
{100} Perfect, {001} Perfect
5-5.5
Na(Mn2+ ,Ca) 2Si 3O 8(OH)Michael O’Donoghue , Gems, Sixth Edition (2006)