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Nosean
Nosean
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Rhodolite
Rhodolite
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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.30-2.40
Uneven, Conchoidal
{110} Perfect
-9999
Na 8Al 6Si 6O 24(SO 4) · H 2OAnthony et al , Handbook of Mineralogy (2001)
 
-
-
-
3.84
Conchoidal
none, may show indistinct parting
7-7.5
(Mg,Fe)3Al2Si3O12