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Properties of Tephrite and Gneiss


Properties of Gneiss and Tephrite


Properties

Physical Properties
  
  

Hardness
6.5   
7   

Grain Size
Medium to Fine Coarse Grained   
Medium to Coarse Grained   

Fracture
Uneven   
Irregular   

Streak
Bluish Black   
White   

Porosity
Very Less Porous   
Very Less Porous   

Luster
Subvitreous to Dull   
Dull   

Compressive Strength
90.00 N/mm2   
22
125.00 N/mm2   
17

Cleavage
Crenulation and Pervasive   
Poor   

Toughness
2.4   
1.2   

Specific Gravity
2.86   
2.5-2.7   

Transparency
Opaque   
Translucent to Opaque   

Density
2.8-2.9 g/cm3   
2.6-2.9 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.92 kJ/Kg K   
10
Not Available   

Resistance
Heat Resistant, Impact Resistant   
Heat Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant   

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Tephrite vs Gneiss Properties

Properties of Tephrite and Gneiss play an important role in determining the type of rock. Along with Tephrite vs Gneiss properties, get to know more about Tephrite Definition and Gneiss Definition. For the ease of understanding, the properties of rocks are divided into physical and thermal properties. Rocks have a variety of properties like hardness, color, specific gravity, fracture, cleavage, luster etc. Know all about physical and thermal properties of Tephrite and Gneiss.

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