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Elbaite
Elbaite
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Prehnite
Prehnite
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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.90-3.10
Uneven, Conchoidal
Poor/indistinct on {1120} and {1011}
7
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) More from other references
 
Brittle
-
-
2.80-2.95
Uneven
Distinct on [001]
6-6.5
Ca2Al2Si3O12(OH)

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Prehnite
Gahnite
Prehnite Vs Gahnite

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