Obsidian

Coquina

Properties of Obsidian and Coquina

Obsidian

Coquina

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

5-5.5

1-2

1.1.2 Grain Size

Not Applicable

Coarse Grained

1.1.3 Fracture

Conchoidal

Irregular

1.1.4 Streak

White

1.1.5 Porosity

Very Less Porous

Highly Porous

1.1.6 Luster

Vitreous

Dull to Vitreous to Submetallic

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

Not Available

1.1.9 Toughness

Not Available

1.1.10 Specific Gravity

2.6-2.7

1.10-2.24

1.1.11 Transparency

Translucent

Opaque

1.1.12 Density

2.6 g/cm³

2.8-2.9 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, Wear Resistant

Obsidian vs Coquina Properties

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