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Rhodolite
Rhodolite

Zinnwaldite
Zinnwaldite



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Rhodolite
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Zinnwaldite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.84
Conchoidal
none, may show indistinct parting
7-7.5
(Mg,Fe)3Al2Si3O12
 
Elastic
-
-
2.9-3.1
Uneven
Perfect basal {001}
3.5-4.0
-