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Rhyolite
Rhyolite
☒

Dallasite
Dallasite
☒



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Rhyolite
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Dallasite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
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None
7
70% SiO2, Al2O3, Na2O, K2O
 
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-
-
2.58-2.91
-
-
6.5-7
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