Properties of Dacite and Gneiss

Dacite

Gneiss

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

2-2.257

1 7

1.1.2 Grain Size

Medium to Fine Coarse Grained

Medium to Coarse Grained

1.1.3 Fracture

Conchoidal

Irregular

1.1.4 Streak

White

1.1.5 Porosity

Less Porous

Very Less Porous

1.1.6 Luster

Subvitreous to Dull

Dull

1.1.7 Compressive Strength

NA125.00 N/mm²

0.15 450

1.1.8 Cleavage

Perfect

Poor

1.1.9 Toughness

Not Available

1.2

1.1.10 Specific Gravity

2.86-2.872.5-2.7

0 8.4

1.1.11 Transparency

Translucent

Translucent to Opaque

1.1.12 Density

2.77-2.771 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, Impact Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant

Dacite vs Gneiss Properties

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