Obsidian

Greywacke

Properties of Obsidian and Greywacke

Obsidian

Greywacke

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

5-5.5

6-7

1.1.2 Grain Size

Not Applicable

Angular and Fine

1.1.3 Fracture

Conchoidal

1.1.4 Streak

White

1.1.5 Porosity

Very Less Porous

Highly Porous

1.1.6 Luster

Vitreous

Dull

1.1.7 Compressive Strength

Properties of F..

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0.15 N/mm²

Rank: 33 (Overall)▶

Not Available

Rank: N/A (Overall)▶

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Properties of Obsidian

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175 (Properties of..)

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1.1.8 Cleavage

Non-Existent

Perfect

1.1.9 Toughness

Not Available

2.6

1.1.10 Specific Gravity

2.6-2.7

2.2-2.8

1.1.11 Transparency

Translucent

Opaque

1.1.12 Density

2.6 g/cm³

2.6-2.61 g/cm³

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

Properties of B..

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0.92 kJ/Kg K

Rank: 10 (Overall)▶

Not Available

Rank: N/A (Overall)▶

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Properties of Granulite

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1.09 (Properties of..)

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1.2.2 Resistance

Heat Resistant, Impact Resistant

Heat Resistant, Impact Resistant, Pressure Resistant

Obsidian vs Greywacke Properties

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