Properties of Coquina and Tephrite

Coquina

Tephrite

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

1-26.5

1 7

1.1.2 Grain Size

Coarse Grained

Medium to Fine Coarse Grained

1.1.3 Fracture

Irregular

Uneven

1.1.4 Streak

White

Bluish Black

1.1.5 Porosity

Highly Porous

Very Less Porous

1.1.6 Luster

Dull to Vitreous to Submetallic

Subvitreous to Dull

1.1.7 Compressive Strength

NA90.00 N/mm²

0.15 450

1.1.8 Cleavage

Not Available

Crenulation and Pervasive

1.1.9 Toughness

Not Available

2.4

1.1.10 Specific Gravity

1.10-2.242.86

0 8.4

1.1.11 Transparency

Opaque

1.1.12 Density

2.8-2.9 g/cm³2.8-2.9 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

NA0.92 kJ/Kg K

0.14 3.2

1.2.2 Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Impact Resistant

Coquina vs Tephrite Properties

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