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Definition

Definition
Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster

History

Origin
Pennsylvania, U.S.

Discoverer
Unknown

Etymology
From Greek anthrakites, from anthrax, anthrak meaning coal

Class
Metamorphic Rocks

Sub-Class
Durable Rock, Soft Rock

Family

Group
-

Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock

Texture

Texture
Amorphous, Glassy

Color
Black, Brown, Dark Brown, Grey, Light to Dark Grey

Maintenance
Less

Durability
Durable

Water Resistant
No

Scratch Resistant
No

Stain Resistant
No

Wind Resistant
No

Acid Resistant
No

Appearance
Veined or Pebbled

Uses

Architecture

Interior Uses
-

Exterior Uses
-

Other Architectural Uses
-

Industry

Construction Industry
Cement Manufacture, for Road Aggregate, Making natural cement, Steel Production

Medical Industry
In Chemical and Pharmaceutical Industry, Manufacture of Aspirins

Antiquity Uses
-

Other Uses

Commercial Uses
Alumina Refineries, Electricity Generation, Liquid Fuel, Manufacture of Soap, Solvents, Dyes, Plastics and Fibres, Paper Industry

Types

Types
Semi-anthracite and Meta-anthracite

Features
Helps in production of Heat and Electricity, Used as fossil fuel

Archaeological Significance

Monuments
-

Famous Monuments
-

Sculpture
-

Famous Sculptures
-

Pictographs
-

Petroglyphs
-

Figurines
-

Fossils
Absent

Formation

Formation
Anthracite forms from the accumulation of plant debris in a swamp environment. When plant debris dies and falls into the swamp, the standing water of the swamp protects it from decay.

Composition

Mineral Content
Calcite, Clay, Clay Minerals

Compound Content
Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur

Transformation

Metamorphism
Yes

Types of Metamorphism
Burial Metamorphism, Contact Metamorphism, Regional Metamorphism

Weathering
No

Types of Weathering
-

Erosion
No

Types of Erosion
-

Properties

Physical Properties

Hardness
1-1.5

Grain Size
Medium to Fine Coarse Grained

Fracture
Conchoidal

Streak
Black

Porosity
Less Porous

Luster
Shiny

Compressive Strength
-

Cleavage
-

Toughness
-

Specific Gravity
1.1-1.4

Transparency
Opaque

Density
1.25-2.5 g/cm3

Thermal Properties

Specific Heat Capacity
1.32 kJ/Kg K 4

Resistance
Heat Resistant, Water Resistant

Reserves

Deposits in Eastern Continents

Asia
Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam

Africa
Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania

Europe
Belgium, Bulgaria, England, France, Germany, Greece, Hungary, Kosovo, Netherlands, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, The Czech Republic, Ukraine, United Kingdom

Others
-

Deposits in Western Continents

North America
Canada, Mexico, USA

South America
Brazil, Chile, Colombia, Venezuela

Deposits in Oceania Continent

Australia
New South Wales, Queensland, Victoria

Summary >>
<< Reserves

Metamorphic Rocks

Learn more about Properties of Anthracite

What is Anthracite? In this section, we will learn more about properties of Anthracite i.e. physical and thermal properties. Physical properties of Anthracite include Color, Streak, Hardness, Structure, Cleavage, Fracture, Luster, Specific Gravity etc. The strength of Anthracite is -. Streak of Anthracite is black while its cleavage is . Luster of Anthracite is shiny and its fracture is conchoidal. Anthracite is opaque in nature. Know all about Anthracite, What is Anthracite, its composition, features, facts and reserves in next sections.

Know about Composition of Anthracite

What is Anthracite composed of? Get to know about composition of Anthracite here. Anthracite definition gives information about the Formation of Anthracite and its composition.The composition of Anthracite can be further divided into mineral and compound content. The mineral content of Anthracite rock includes Calcite, Clay, Clay Minerals and The compound content of Anthracite rock includes Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur. Almost all rocks undergo transformation process. Know all about Anthracite rock in next section.

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