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Plumbogummite
Plumbogummite

Rhyolite
Rhyolite



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Plumbogummite
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Rhyolite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
Soluble
-
4.014
Uneven, Conchoidal
None
4-5
PbAl3(PO4)(SO4)(OH)6
 
-
-
-
-9999
-
None
7
70% SiO2, Al2O3, Na2O, K2O