Properties of Pseudotachylite and Gneiss

Pseudotachylite

Gneiss

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

1 7

1.1.2 Grain Size

Very fine-grained

Medium to Coarse Grained

1.1.3 Fracture

Uneven

Irregular

1.1.4 Streak

Light to dark brown

White

1.1.5 Porosity

Less Porous

Very Less Porous

1.1.6 Luster

Vitreous

Dull

1.1.7 Compressive Strength

60.00 N/mm²125.00 N/mm²

0.15 450

1.1.8 Cleavage

Irregular

Poor

1.1.9 Toughness

Not Available

1.2

1.1.10 Specific Gravity

2.46-2.862.5-2.7

0 8.4

1.1.11 Transparency

Transparent to Translucent

Translucent to Opaque

1.1.12 Density

2.7-2.9 g/cm³2.6-2.9 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

0.92 kJ/Kg KNA

0.14 3.2

1.2.2 Resistance

Heat Resistant

Heat Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant

Pseudotachylite vs Gneiss Properties

Properties of Pseudotachylite and Gneiss play an important role in determining the type of rock. Along with Pseudotachylite vs Gneiss properties, get to know more about Pseudotachylite 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 Pseudotachylite and Gneiss.