Properties of Gneiss and Nephelinite

Gneiss

Nephelinite

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

76.5

1 7

1.1.2 Grain Size

Medium to Coarse Grained

Fine Grained

1.1.3 Fracture

Irregular

Flat

1.1.4 Streak

White

1.1.5 Porosity

Very Less Porous

Less Porous

1.1.6 Luster

Dull

Vitreous to Metallic

1.1.7 Compressive Strength

125.00 N/mm²35.00 N/mm²

0.15 450

1.1.8 Cleavage

Poor

Imperfect

1.1.9 Toughness

1.2

2.7

1.1.10 Specific Gravity

2.5-2.72.4-2.9

0 8.4

1.1.11 Transparency

Translucent to Opaque

Opaque

1.1.12 Density

2.6-2.9 g/cm³2.5-3 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

NA0.88 kJ/Kg K

0.14 3.2

1.2.2 Resistance

Heat Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant

Heat Resistant

Gneiss vs Nephelinite Properties

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