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Variolite
Variolite

Comendite
Comendite



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Variolite
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Comendite
Properties

Hardness

Grain Size

Fracture

Streak

Porosity

Luster

Compressive Strength

Cleavage

Toughness

Specific Gravity

Transparency

Density

Specific Heat Capacity

Resistance

 
6
-
Conchoidal
White to Grey
Less Porous
-
37.50 N/mm2
-
2.3
2.8-3
Opaque
2.9-3.1 g/cm3
0.84 kJ/Kg K
Heat Resistant, Pressure Resistant, Wear Resistant
 
6-7
Medium Grained
Pervasive
Bluish Black
Highly Porous
Dull
92.40 N/mm2
-
2
2.38
Opaque
-9999 g/cm3
0.79 kJ/Kg K
Heat Resistant, Impact Resistant