Obsidian

Anthracite

Properties of Obsidian and Anthracite

Obsidian

Anthracite

Add ⊕

1 Properties

1.1 Physical Properties

1.1.1 Hardness

5-5.5

1-1.5

1.1.2 Grain Size

Not Applicable

Medium to Fine Coarse Grained

1.1.3 Fracture

Conchoidal

1.1.4 Streak

White

Black

1.1.5 Porosity

Very Less Porous

Less Porous

1.1.6 Luster

Vitreous

Shiny

1.1.7 Compressive Strength

Properties of F..

⊕

▶

▼

0.15 N/mm²

Rank: 33 (Overall)▶

Not Available

Rank: N/A (Overall)▶

▲

Properties of Obsidian

⊕

▶

175 (Properties of..)

◀ ▶ ADD ⊕

1.1.8 Cleavage

Non-Existent

1.1.9 Toughness

Not Available

1.1.10 Specific Gravity

2.6-2.7

1.1-1.4

1.1.11 Transparency

Translucent

Opaque

1.1.12 Density

2.6 g/cm³

1.25-2.5 g/cm³

1.2 Thermal Properties

1.2.1 Specific Heat Capacity

Properties of B..

⊕

▶

▼

0.92 kJ/Kg K

Rank: 10 (Overall)▶

1.32 kJ/Kg K

Rank: 4 (Overall)▶

▲

Properties of Granulite

⊕

▶

1.09 (Properties of..)

◀ ▶ ADD ⊕

1.2.2 Resistance

Heat Resistant, Impact Resistant

Heat Resistant, Water Resistant

Obsidian vs Anthracite Properties

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