Properties of Greywacke and Coquina

Greywacke

Coquina

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1 Properties

1.1 Physical Properties

1.1.1 Hardness

6-71-2

1 7

1.1.2 Grain Size

Angular and Fine

Coarse Grained

1.1.3 Fracture

Conchoidal

Irregular

1.1.4 Streak

White

1.1.5 Porosity

Highly Porous

1.1.6 Luster

Dull

Dull to Vitreous to Submetallic

1.1.7 Compressive Strength

NANA

0.15 450

1.1.8 Cleavage

Perfect

Not Available

1.1.9 Toughness

2.6

Not Available

1.1.10 Specific Gravity

2.2-2.81.10-2.24

0 8.4

1.1.11 Transparency

Opaque

1.1.12 Density

2.6-2.61 g/cm³2.8-2.9 g/cm³

0 1400

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

NANA

0.14 3.2

1.2.2 Resistance

Heat Resistant, Impact Resistant, Pressure Resistant

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Greywacke vs Coquina Properties

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