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Slate
Slate
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Diabase
Diabase
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Properties

Hardness

Grain Size

Fracture

Streak

Porosity

Luster

Compressive Strength

Cleavage

Toughness

Specific Gravity

Transparency

Density

Specific Heat Capacity

Resistance

 
3-4
Very fine-grained
Splintery
Light to dark brown
Less Porous
Dull
30.00 N/mm2
Slaty
1.2
2.65-2.8
Opaque
2.6-2.8 g/cm3
0.76 kJ/Kg K
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
 
7
Fine to Medium Grained
Conchoidal
Black
Highly Porous
-
225.00 N/mm2
-
1.6
2.86-2.87
Opaque
2.7-3.3 g/cm3
0.84 kJ/Kg K
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant