Home
Compare Rocks


Anthracite and Granodiorite


Granodiorite and Anthracite


Definition

Definition
Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster   
Granodiorite is a coarse-grained intrusive igneous rock containing quartz and plagioclase, and which has composition in between granite and diorite   

History
  
  

Origin
Pennsylvania, U.S.   
Unknown   

Discoverer
Unknown   
Unknown   

Etymology
From Greek anthrakites, from anthrax, anthrak meaning coal   
From granite + diorite   

Class
Metamorphic Rocks   
Igneous Rocks   

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

Family
  
  

Group
Not Applicable   
Plutonic   

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

Texture

Texture
Amorphous, Glassy   
Granular, Phaneritic   

Color
Black, Brown, Dark Brown, Grey, Light to Dark Grey   
Black, Grey, Orange, Pink, White   

Maintenance
Less   
More   

Durability
Durable   
Durable   

Water Resistant
No   
Yes   

Scratch Resistant
No   
Yes   

Stain Resistant
No   
No   

Wind Resistant
No   
Yes   

Acid Resistant
No   
No   

Appearance
Veined or Pebbled   
Veined or Pebbled   

Uses

Architecture
  
  

Interior Uses
Not Yet Used   
Bathrooms, Countertops, Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Hotels, Interior Decoration, Stair Treads   

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

Other Architectural Uses
Not Yet Used   
Not Yet Used   

Industry
  
  

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

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

Antiquity Uses
Not Yet Used   
Artifacts, Monuments, Sculpture   

Other Uses
  
  

Commercial Uses
Alumina Refineries, Electricity Generation, Liquid Fuel, Manufacture of Soap, Solvents, Dyes, Plastics and Fibres, Paper Industry   
Curling, Gemstone, Laboratory bench tops, Tombstones   

Types

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   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Used   

Famous Monuments
Not Applicable   
Data Not Available   

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.   
Granodiorite is an intrusive igneous rock which is very hard, crystalline and is visibly homogeneous in texture and forms by melting of continental rocks.   

Composition
  
  

Mineral Content
Calcite, Clay, Clay Minerals   
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz   

Compound Content
Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur   
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium 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   
Chemical Weathering   

Erosion
No   
Yes   

Types of Erosion
Not Applicable   
Chemical Erosion, Glacier Erosion, Wind Erosion   

Properties

Physical Properties
  
  

Hardness
1-1.5   
6   

Grain Size
Medium to Fine Coarse Grained   
Medium to Coarse Grained   

Fracture
Conchoidal   
Not Available   

Streak
Black   
White   

Porosity
Less Porous   
Less Porous   

Luster
Shiny   
Grainy, Pearly and Vitreous   

Compressive Strength
Not Available   
175.00 N/mm2   
13

Cleavage
Non-Existent   
Not Available   

Toughness
Not Available   
Not Available   

Specific Gravity
1.1-1.4   
2.6-2.7   

Transparency
Opaque   
Opaque   

Density
1.25-2.5 g/cm3   
2.6-2.8 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
1.32 kJ/Kg K   
4
0.79 kJ/Kg K   
16

Resistance
Heat Resistant, Water Resistant   
Heat Resistant, Wear Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam   
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam   

Africa
Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania   
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa   

Europe
Belgium, Bulgaria, England, France, Germany, Greece, Hungary, Kosovo, Netherlands, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, The Czech Republic, Ukraine, United Kingdom   
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic, Venezuela   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Canada, Mexico, USA   
Canada, USA   

South America
Brazil, Chile, Colombia, Venezuela   
Not Yet Found   

Deposits in Oceania Continent
  
  

Australia
New South Wales, Queensland, Victoria   
Not Yet Found   

Summary >>
<< Reserves

All about Anthracite and Granodiorite Properties

Know all about Anthracite and Granodiorite properties here. All properties of rocks are important as they define the type of rock and its application. Anthracite belongs to Metamorphic Rocks while Granodiorite belongs to Igneous Rocks.Texture of Anthracite is Amorphous, Glassy whereas that of Granodiorite is Granular, Phaneritic. Anthracite appears Veined or Pebbled and Granodiorite appears Veined or Pebbled. The luster of Anthracite is shiny while that of Granodiorite is grainy, pearly and vitreous. Anthracite is available in black, brown, dark brown, grey, light to dark grey colors whereas Granodiorite is available in black, grey, orange, 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 Granodiorite are curling, gemstone, laboratory bench tops, tombstones.

Compare Metamorphic Rocks

Metamorphic Rocks

Metamorphic Rocks

» More Metamorphic Rocks

Compare Metamorphic Rocks

» More Compare Metamorphic Rocks