Home
Compare Rocks


Syenite and Anthracite


Anthracite and Syenite


Definition

Definition
Syenite is a coarse-grained igneous rock which is composed mainly of alkali feldspar and various ferromagnesian minerals   
Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster   

History
  
  

Origin
Unknown   
Pennsylvania, U.S.   

Discoverer
Unknown   
Unknown   

Etymology
From French syénite, from Latin Syenites (lapis ) (stone) of Syene   
From Greek anthrakites, from anthrax, anthrak meaning coal   

Class
Igneous Rocks   
Metamorphic Rocks   

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

Family
  
  

Group
Plutonic   
Not Applicable   

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

Texture

Texture
Earthy   
Amorphous, Glassy   

Color
Brown, Buff, Cream, Green, Grey, Pink, White   
Black, Brown, Dark Brown, Grey, Light to Dark Grey   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
No   

Scratch Resistant
Yes   
No   

Stain Resistant
No   
No   

Wind Resistant
Yes   
No   

Acid Resistant
Yes   
No   

Appearance
Banded and Foilated   
Veined or Pebbled   

Uses

Architecture
  
  

Interior Uses
Flooring, Homes, Hotels, Interior Decoration   
Not Yet Used   

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

Other Architectural Uses
Curbing   
Not Yet Used   

Industry
  
  

Construction Industry
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories   
Cement Manufacture, for Road Aggregate, Making natural cement, Steel Production   

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

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

Other Uses
  
  

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

Types

Types
Shonkinite   
Semi-anthracite and Meta-anthracite   

Features
Available in Lots of Colors and Patterns, Is one of the oldest rock, Matrix variable   
Helps in production of Heat and Electricity, Used as fossil fuel   

Archaeological Significance
  
  

Monuments
Used   
Not Yet Used   

Famous Monuments
Data Not Available   
Not Applicable   

Sculpture
Used   
Not Yet Used   

Famous Sculptures
Data Not Available   
Not Applicable   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Used   
Not Yet Used   

Fossils
Absent   
Absent   

Formation

Formation
Syenites are formed due to alkaline igneous activities and are generally formed in thick continental crustal areas or in Cordilleran subduction zones.   
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
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz   
Calcite, Clay, Clay Minerals   

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

Transformation
  
  

Metamorphism
Yes   
Yes   

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

Weathering
Yes   
No   

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

Erosion
Yes   
No   

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

Properties

Physical Properties
  
  

Hardness
5.5-6   
1-1.5   

Grain Size
Medium to Fine Coarse Grained   
Medium to Fine Coarse Grained   

Fracture
Not Available   
Conchoidal   

Streak
White   
Black   

Porosity
Less Porous   
Less Porous   

Luster
Subvitreous to Dull   
Shiny   

Compressive Strength
150.00 N/mm2   
14
Not Available   

Cleavage
Perfect   
Non-Existent   

Toughness
Not Available   
Not Available   

Specific Gravity
2.6-2.7   
1.1-1.4   

Transparency
Opaque   
Opaque   

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

Thermal Properties
  
  

Specific Heat Capacity
0.92 kJ/Kg K   
10
1.32 kJ/Kg K   
4

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

Reserves

Deposits in Eastern Continents
  
  

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

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

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

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
USA   
Canada, Mexico, USA   

South America
Brazil, Chile   
Brazil, Chile, Colombia, Venezuela   

Deposits in Oceania Continent
  
  

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

Summary >>
<< Reserves

All about Syenite and Anthracite Properties

Know all about Syenite and Anthracite properties here. All properties of rocks are important as they define the type of rock and its application. Syenite belongs to Igneous Rocks while Anthracite belongs to Metamorphic Rocks.Texture of Syenite is Earthy whereas that of Anthracite is Amorphous, Glassy. Syenite appears Banded and Foilated and Anthracite appears Veined or Pebbled. The luster of Syenite is subvitreous to dull while that of Anthracite is shiny. Syenite is available in brown, buff, cream, green, grey, pink, white colors whereas Anthracite is available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Syenite are cemetery markers, creating artwork and that of Anthracite are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry.

Compare Igneous Rocks

Igneous Rocks

Igneous Rocks

» More Igneous Rocks

Compare Igneous Rocks

» More Compare Igneous Rocks