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Helenite
Helenite

Quartz
Quartz



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Helenite
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Quartz
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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
-9999
-
Indiscernible
-9999
SiO2
 
Brittle
-
-
2.65
Conchoidal
{0110} Indistinct
7
SiO2