Properties of Gneiss and Pegmatite

Gneiss

Pegmatite

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

1 7

1.1.2 Grain Size

Medium to Coarse Grained

1.1.3 Fracture

Irregular

Conchoidal

1.1.4 Streak

White

1.1.5 Porosity

Very Less Porous

Less Porous

1.1.6 Luster

Dull

Grainy, Pearly and Vitreous

1.1.7 Compressive Strength

125.00 N/mm²178.54 N/mm²

0.15 450

1.1.8 Cleavage

Poor

Perfect

1.1.9 Toughness

1.2

2.1

1.1.10 Specific Gravity

2.5-2.72.6-2.63

0 8.4

1.1.11 Transparency

Translucent to Opaque

1.1.12 Density

2.6-2.9 g/cm³2.6-2.65 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

NANA

0.14 3.2

1.2.2 Resistance

Heat Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant

Heat Resistant, Impact Resistant, Pressure Resistant

Gneiss vs Pegmatite Properties

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