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Rhyolite
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Helenite
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Rhyolite
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Summary
Astrology
Physical Properties
Optical Properties
Benefits
All
Physical Properties
Tenacity
Solubility
Durability
Specific Gravity
Fracture
Cleavage
Mohs Hardness
Chemical Composition
-
-
-
-9999
-
None
7
70% SiO2, Al2O3, Na2O, K2O
-
-
-
-9999
-
Indiscernible
-9999
SiO
2
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