Definition
Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster
  
Claystone is a fine-grained, dark gray to pink sedimentary rock which mainly consists of compacted and hardened clay
  
History
  
  
Origin
Pennsylvania, U.S.
  
Unknown
  
Discoverer
Unknown
  
Unknown
  
Etymology
From Greek anthrakites, from anthrax, anthrak meaning coal
  
From English clay and stone as the rock contains more amount of clay
  
Class
Metamorphic Rocks
  
Sedimentary Rocks
  
Sub-Class
Durable Rock, Soft Rock
  
Durable Rock, Medium Hardness Rock
  
Family
  
  
Group
Not Applicable
  
Not Applicable
  
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
  
Fine Grained Rock, Opaque Rock
  
Texture
Amorphous, Glassy
  
Clastic
  
Color
Black, Brown, Dark Brown, Grey, Light to Dark Grey
  
Black, Blue, Brown, Green, Grey, Orange, Red, White, Yellow
  
Maintenance
Less
  
More
  
Durability
Durable
  
Durable
  
Water Resistant
No
  
Yes
  
Scratch Resistant
No
  
Yes
  
Stain Resistant
No
  
No
  
Wind Resistant
No
  
No
  
Acid Resistant
No
  
No
  
Appearance
Veined or Pebbled
  
Rough and Dull
  
Architecture
  
  
Interior Uses
Not Yet Used
  
Decorative Aggregates, Entryways, Floor Tiles, Homes, Interior Decoration
  
Exterior Uses
Not Yet Used
  
As Facing Stone, Roof Tiles
  
Other Architectural Uses
Not Yet Used
  
Curbing
  
Industry
  
  
Construction Industry
Cement Manufacture, for Road Aggregate, Making natural cement, Steel Production
  
As a Sintering Agent in Steel Industry to process Iron Ore, Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar
  
Medical Industry
In Chemical and Pharmaceutical Industry, Manufacture of Aspirins
  
Not Yet Used
  
Antiquity Uses
Not Yet Used
  
Artifacts, Sculpture, Small Figurines
  
Other Uses
  
  
Commercial Uses
Alumina Refineries, Electricity Generation, Liquid Fuel, Manufacture of Soap, Solvents, Dyes, Plastics and Fibres, Paper Industry
  
Pottery
  
Types
Semi-anthracite and Meta-anthracite
  
Not Available
  
Features
Helps in production of Heat and Electricity, Used as fossil fuel
  
Available in Lots of Colors and Patterns, Smooth to touch, Very fine grained rock
  
Archaeological Significance
  
  
Monuments
Not Yet Used
  
Not Yet Used
  
Famous Monuments
Not Applicable
  
Not Applicable
  
Sculpture
Not Yet Used
  
Used
  
Famous Sculptures
Not Applicable
  
Data Not Available
  
Pictographs
Used
  
Used
  
Petroglyphs
Used
  
Used
  
Figurines
Not Yet Used
  
Used
  
Fossils
Absent
  
Present
  
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.
  
Claystone is generally quite soft, but can be hard and brittle. It forms due to weathering of mudstone.
  
Composition
  
  
Mineral Content
Calcite, Clay, Clay Minerals
  
Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz
  
Compound Content
Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur
  
Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, MgO, Silicon Dioxide
  
Transformation
  
  
Metamorphism
Yes
  
No
  
Types of Metamorphism
Burial Metamorphism, Contact Metamorphism, Regional Metamorphism
  
Not Applicable
  
Weathering
No
  
Yes
  
Types of Weathering
Not Applicable
  
Biological Weathering, Chemical Weathering, Mechanical Weathering
  
Erosion
No
  
Yes
  
Types of Erosion
Not Applicable
  
Coastal Erosion, Water Erosion
  
Physical Properties
  
  
Hardness
1-1.5
  
3.5-4
  
Grain Size
Medium to Fine Coarse Grained
  
Fine Grained
  
Fracture
Conchoidal
  
Not Available
  
Streak
Black
  
White
  
Porosity
Less Porous
  
Very Less Porous
  
Luster
Shiny
  
Dull
  
Cleavage
Non-Existent
  
Perfect
  
Toughness
Not Available
  
2.6
  
Specific Gravity
1.1-1.4
  
0
  
Transparency
Opaque
  
Opaque
  
Density
1.25-2.5 g/cm3
  
2-2.9 g/cm3
  
Thermal Properties
  
  
Specific Heat Capacity
1.32 kJ/Kg K
  
4
0.92 kJ/Kg K
  
10
Resistance
Heat Resistant, Water Resistant
  
Heat Resistant, Impact Resistant
  
Deposits in Eastern Continents
  
  
Asia
Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam
  
Bangladesh, China, India, Russia
  
Africa
Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania
  
Ethiopia, Kenya, Morocco, 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
  
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
  
Others
Not Yet Found
  
Not Yet Found
  
Deposits in Western Continents
  
  
North America
Canada, Mexico, USA
  
Canada, Panama, USA
  
South America
Brazil, Chile, Colombia, Venezuela
  
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
  
Deposits in Oceania Continent
  
  
Australia
New South Wales, Queensland, Victoria
  
New South Wales, New Zealand, Queensland, Victoria, Western Australia
  
Anthracite vs Claystone Characteristics
Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Anthracite vs Claystone characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Anthracite and Properties of Claystone. Learn more about Anthracite vs Claystone in the next section. The interior uses of Anthracite include Not yet used whereas the interior uses of Claystone include Decorative aggregates, Entryways, Floor tiles, Homes and Interior decoration. Due to some exceptional properties of Anthracite and Claystone, they have various applications in construction industry. The uses of Anthracite in construction industry include Cement manufacture, For road aggregate, Making natural cement, Steel production and that of Claystone include As a sintering agent in steel industry to process iron ore, Cement manufacture, Construction aggregate, For road aggregate, Making natural cement, Raw material for the manufacture of mortar.
More about Anthracite and Claystone
Here you can know more about Anthracite and Claystone. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Anthracite and Claystone consists of mineral content and compound content. The mineral content of Anthracite includes Calcite, Clay, Clay Minerals and mineral content of Claystone includes Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz. You can also check out the list of all . When we have to compare Anthracite vs Claystone, the texture, color and appearance plays an important role in determining the type of rock. Anthracite is available in black, brown, dark brown, grey, light to dark grey colors whereas, Claystone is available in black, blue, brown, green, grey, orange, red, white, yellow colors. Appearance of Anthracite is Veined or Pebbled and that of Claystone is Rough and Dull. Properties of rock is another aspect for Anthracite vs Claystone. The hardness of Anthracite is 1-1.5 and that of Claystone is 3.5-4. The types of Anthracite are Semi-anthracite and Meta-anthracite whereas types of Claystone are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Anthracite is black while that of Claystone is white. The specific heat capacity of Anthracite is 1.32 kJ/Kg K and that of Claystone is 0.92 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Anthracite is heat resistant, water resistant whereas Claystone is heat resistant, impact resistant.