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Anthracite
Anthracite

Pseudotachylite
Pseudotachylite



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Anthracite
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Pseudotachylite

Anthracite and Pseudotachylite

1 Definition
1.1 Definition
Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster
Very fine grained fault rock which is composed of glassy matrix that often contains inclusions of wall-rock fragments.
1.2 History
1.2.1 Origin
Pennsylvania, U.S.
USA
1.2.2 Discoverer
Unknown
Unknown
1.3 Etymology
From Greek anthrakites, from anthrax, anthrak meaning coal
From pseudo- +‎ tachylite, a glassy rock generated by frictional heat within faults.
1.4 Class
Metamorphic Rocks
Metamorphic Rocks
1.4.1 Sub-Class
Durable Rock, Soft Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
Not Applicable
Not Applicable
1.6 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Amorphous, Glassy
Quench
2.2 Color
Black, Brown, Dark Brown, Grey, Light to Dark Grey
Black, Brown, Colourless, Green, Grey, Pink, White
2.3 Maintenance
Less
Less
2.4 Durability
Durable
Durable
2.4.1 Water Resistant
2.4.2 Scratch Resistant
2.4.3 Stain Resistant
2.4.4 Wind Resistant
2.4.5 Acid Resistant
2.5 Appearance
Veined or Pebbled
Dull and Soft
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Not Yet Used
Decorative Aggregates, Entryways, Interior Decoration
3.1.2 Exterior Uses
Not Yet Used
As Building Stone, As Facing Stone, Garden Decoration
3.1.3 Other Architectural Uses
Not Yet Used
Curbing
3.2 Industry
3.2.1 Construction Industry
Cement Manufacture, for Road Aggregate, Making natural cement, Steel Production
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement
3.2.2 Medical Industry
In Chemical and Pharmaceutical Industry, Manufacture of Aspirins
Not Yet Used
3.3 Antiquity Uses
Not Yet Used
Artifacts, Monuments
3.4 Other Uses
3.4.1 Commercial Uses
Alumina Refineries, Electricity Generation, Liquid Fuel, Manufacture of Soap, Solvents, Dyes, Plastics and Fibres, Paper Industry
Creating Artwork, Gemstone
4 Types
4.1 Types
Semi-anthracite and Meta-anthracite
Not Available
4.2 Features
Helps in production of Heat and Electricity, Used as fossil fuel
Host Rock for Lead
4.3 Archaeological Significance
4.3.1 Monuments
Not Yet Used
Used
4.3.2 Famous Monuments
Not Applicable
Data Not Available
4.3.3 Sculpture
Not Yet Used
Not Yet Used
4.3.4 Famous Sculptures
Not Applicable
Not Applicable
4.3.5 Pictographs
Used
Not Used
4.3.6 Petroglyphs
Used
Not Used
4.3.7 Figurines
Not Yet Used
Not Yet Used
4.4 Fossils
Absent
Absent
5 Formation
5.1 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.
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Pseudotachylite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.
5.2 Composition
5.2.1 Mineral Content
Calcite, Clay, Clay Minerals
Iron Oxides, Pyroxene, Quartz, Stishovite, Sulfides
5.2.2 Compound Content
Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur
Carbon Dioxide, Silicon Dioxide, Sulfur Dioxide, Sulphur
5.3 Transformation
5.3.1 Metamorphism
5.3.2 Types of Metamorphism
Burial Metamorphism, Contact Metamorphism, Regional Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
5.3.3 Weathering
5.3.4 Types of Weathering
Not Applicable
Not Applicable
5.3.5 Erosion
5.3.6 Types of Erosion
Not Applicable
Not Applicable
6 Properties
6.1 Physical Properties
6.1.1 Hardness
1-1.57
Coal
1 7
6.1.2 Grain Size
Medium to Fine Coarse Grained
Very fine-grained
6.1.3 Fracture
Conchoidal
Uneven
6.1.4 Streak
Black
Light to dark brown
6.1.5 Porosity
Less Porous
Less Porous
6.1.6 Luster
Shiny
Vitreous
6.1.7 Compressive Strength
NA60.00 N/mm2
What Is Obsidian
0.15 450
6.1.8 Cleavage
Non-Existent
Irregular
6.1.9 Toughness
Not Available
Not Available
6.1.10 Specific Gravity
1.1-1.42.46-2.86
Granite
0 8.4
6.1.11 Transparency
Opaque
Transparent to Translucent
6.1.12 Density
1.25-2.5 g/cm32.7-2.9 g/cm3
Granite
0 1400
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
1.32 kJ/Kg K0.92 kJ/Kg K
What Is Granulite
0.14 3.2
6.2.2 Resistance
Heat Resistant, Water Resistant
Heat Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam
South Korea
7.1.2 Africa
Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania
Western Africa
7.1.3 Europe
Belgium, Bulgaria, England, France, Germany, Greece, Hungary, Kosovo, Netherlands, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, The Czech Republic, Ukraine, United Kingdom
Great Britain, Switzerland
7.1.4 Others
Not Yet Found
Not Yet Found
7.2 Deposits in Western Continents
7.2.1 North America
Canada, Mexico, USA
Not Yet Found
7.2.2 South America
Brazil, Chile, Colombia, Venezuela
Not Yet Found
7.3 Deposits in Oceania Continent
7.3.1 Australia
New South Wales, Queensland, Victoria
Central Australia, Western Australia

All about Anthracite and Pseudotachylite Properties

Know all about Anthracite and Pseudotachylite properties here. All properties of rocks are important as they define the type of rock and its application. Anthracite and Pseudotachylite belong to Metamorphic Rocks.Texture of Anthracite is Amorphous, Glassy whereas that of Pseudotachylite is Quench. Anthracite appears Veined or Pebbled and Pseudotachylite appears Dull and Soft. The luster of Anthracite is shiny while that of Pseudotachylite is vitreous. Anthracite is available in black, brown, dark brown, grey, light to dark grey colors whereas Pseudotachylite is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Anthracite are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry and that of Pseudotachylite are creating artwork, gemstone.