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Anthracite vs Tuff


Tuff vs Anthracite


Definition

Definition
Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster   
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption   

History
  
  

Origin
Pennsylvania, U.S.   
Italy   

Discoverer
Unknown   
Unknown   

Etymology
From Greek anthrakites, from anthrax, anthrak meaning coal   
From a Latin word tophous then in Italian tufo and finally tuff   

Class
Metamorphic Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Soft Rock   
Durable Rock, Medium Hardness Rock   

Family
  
  

Group
Not Applicable   
Volcanic   

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

Texture

Texture
Amorphous, Glassy   
Clastic, Pyroclastic   

Color
Black, Brown, Dark Brown, Grey, Light to Dark Grey   
Brown, Grey, 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   
Dull, Vesicular and Foilated   

Uses

Architecture
  
  

Interior Uses
Not Yet Used   
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration   

Exterior Uses
Not Yet Used   
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone   

Other Architectural Uses
Not Yet Used   
Curbing   

Industry
  
  

Construction Industry
Cement Manufacture, for Road Aggregate, Making natural cement, Steel Production   
Building houses or walls, Construction Aggregate   

Medical Industry
In Chemical and Pharmaceutical Industry, Manufacture of Aspirins   
Not Yet Used   

Antiquity Uses
Not Yet Used   
Artifacts, Monuments, Sculpture, Small Figurines   

Other Uses
  
  

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

Types

Types
Semi-anthracite and Meta-anthracite   
Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff, Andesitic tuff and Ignimbrite.   

Features
Helps in production of Heat and Electricity, Used as fossil fuel   
Always found as volcanic pipes over deep continental crust   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Used   

Famous Monuments
Not Applicable   
Easter Island in the Polynesian Triangle, Pacific Ocean   

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   
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.   
Tuff is formed when large masses of ash and sand which are mixed with hot gases are ejected by a volcano and avalanche rapidly down its slopes.   

Composition
  
  

Mineral Content
Calcite, Clay, Clay Minerals   
Calcite, Chlorite   

Compound Content
Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur   
Hydrogen Sulfide, Sulfur Dioxide   

Transformation
  
  

Metamorphism
Yes   
Yes   

Types of Metamorphism
Burial Metamorphism, Contact Metamorphism, Regional Metamorphism   
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism   

Weathering
No   
Yes   

Types of Weathering
Not Applicable   
Biological Weathering, Chemical Weathering, Mechanical Weathering   

Erosion
No   
Yes   

Types of Erosion
Not Applicable   
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion   

Properties

Physical Properties
  
  

Hardness
1-1.5   
4-6   

Grain Size
Medium to Fine Coarse Grained   
Fine Grained   

Fracture
Conchoidal   
Uneven   

Streak
Black   
White   

Porosity
Less Porous   
Highly Porous   

Luster
Shiny   
Vitreous to Dull   

Compressive Strength
Not Available   
243.80 N/mm2   
5

Cleavage
Non-Existent   
Not Available   

Toughness
Not Available   
Not Available   

Specific Gravity
1.1-1.4   
2.73   

Transparency
Opaque   
Opaque   

Density
1.25-2.5 g/cm3   
1-1.8 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
1.32 kJ/Kg K   
4
0.20 kJ/Kg K   
25

Resistance
Heat Resistant, Water Resistant   
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam   
Afghanistan, Armenia, Azerbaijan, Burma, Cambodia, China, India, Indonesia, Iran, Japan, Malaysia, Mongolia, Nepal, North Korea, Pakistan, Saudi Arabia, Syria, Taiwan, Thailand, Turkey, Vietnam, Yemen   

Africa
Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania   
Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda   

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

Others
Not Yet Found   
Antarctica, Hawaii Islands   

Deposits in Western Continents
  
  

North America
Canada, Mexico, USA   
Canada, Costa Rica, Panama, USA   

South America
Brazil, Chile, Colombia, Venezuela   
Argentina, Bolivia, Brazil, Chile, Ecuador, Paraguay   

Deposits in Oceania Continent
  
  

Australia
New South Wales, Queensland, Victoria   
Central Australia, Western Australia   

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Anthracite vs Tuff Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Anthracite and Tuff Reserves. Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster. Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Anthracite vs Tuff information and Anthracite vs Tuff characteristics in the upcoming sections.

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Anthracite vs Tuff 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 Tuff characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Anthracite and Properties of Tuff. Learn more about Anthracite vs Tuff in the next section. The interior uses of Anthracite include Not yet used whereas the interior uses of Tuff include Decorative aggregates, Entryways, Flooring, Homes and Interior decoration. Due to some exceptional properties of Anthracite and Tuff, 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 Tuff include Building houses or walls, Construction aggregate.

More about Anthracite and Tuff

Here you can know more about Anthracite and Tuff. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Anthracite and Tuff consists of mineral content and compound content. The mineral content of Anthracite includes Calcite, Clay, Clay Minerals and mineral content of Tuff includes Calcite, Chlorite. You can also check out the list of all Metamorphic Rocks. When we have to compare Anthracite vs Tuff, 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, Tuff is available in brown, grey, yellow colors. Appearance of Anthracite is Veined or Pebbled and that of Tuff is Dull, Vesicular and Foilated. Properties of rock is another aspect for Anthracite vs Tuff. The hardness of Anthracite is 1-1.5 and that of Tuff is 4-6. The types of Anthracite are Semi-anthracite and Meta-anthracite whereas types of Tuff are Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff, Andesitic tuff and Ignimbrite.. 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 Tuff is white. The specific heat capacity of Anthracite is 1.32 kJ/Kg K and that of Tuff is 0.20 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 Tuff is heat resistant, impact resistant, pressure resistant, wear resistant.

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