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Granulite
Granulite

Skarn
Skarn



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Granulite
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Skarn

Granulite and Skarn

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1 Definition
1.1 Definition
Granulite is fine to medium grained metamorphic rock with a granular of polygonal crystals.
Skarns are formed during regional or contact metamorphism and from a variety of metasomatic processes involving fluids of magmatic, metamorphic, and/or marine origin
1.2 History
1.2.1 Origin
Central Europe
USA, Australia
1.2.2 Discoverer
Unknown
Tornebohm
1.3 Etymology
From Latin granulum, a little grain or fine grained
From an old Swedish mining term originally used to describe a type of silicate gangue or waste rock.
1.4 Class
Metamorphic Rocks
Metamorphic Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
Not Applicable
Not Applicable
1.6 Other Categories
Coarse Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Granoblastic
Earthy, Mud-rich, Rough
2.2 Color
Black, Brown
Black, Brown, Colourless, Green, Grey, 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
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Bathrooms, Countertops, Decorative Aggregates, Entryways, Flooring, Homes, Hotels, Interior Decoration, Kitchens, Stair Treads
Decorative Aggregates, Entryways, Interior Decoration
3.1.2 Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
3.1.3 Other Architectural Uses
Curbing
Curbing
3.2 Industry
3.2.1 Construction Industry
As Dimension Stone, Building houses or walls
As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Gold and Silver production, Manufacture of Magnesium and Dolomite Refractories
3.2.2 Medical Industry
Not Yet Used
Not Applicable
3.3 Antiquity Uses
Artifacts, Monuments, Sculpture
Artifacts, Monuments, Sculpture
3.4 Other Uses
3.4.1 Commercial Uses
Curling, Gemstone, Laboratory bench tops, Soil Conditioner, Tombstones
Creating Artwork, Gemstone, Jewelry, Metallurgical Flux, Source of Magnesia (MgO)
4 Types
4.1 Types
Not Available
Endoskarns
4.2 Features
Clasts are smooth to touch
Host Rock for Lead, Zinc and Copper Deposits
4.3 Archaeological Significance
4.3.1 Monuments
Used
Used
4.3.2 Famous Monuments
Data Not Available
Data Not Available
4.3.3 Sculpture
Used
Used
4.3.4 Famous Sculptures
Data Not Available
Data Not Available
4.3.5 Pictographs
Not Used
Not Used
4.3.6 Petroglyphs
Not Used
Not Used
4.3.7 Figurines
Used
Used
4.4 Fossils
Absent
Absent
5 Formation
5.1 Formation
Granulite is a fine-grained granular metamorphic rock in which the main component minerals are feldspars and quartz and forms at high temperature and pressure conditions.
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Skarn 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
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Quartz
Calcite, Enstatite, Epidote, Garnet, Magnetite, Pyroxene, Titanite
5.2.2 Compound Content
Aluminium Oxide, CaO, Carbon Dioxide, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Sulfur Dioxide, Titanium Dioxide
Au, CaO, Carbon Dioxide, Cu, Fe, MgO
5.3 Transformation
5.3.1 Metamorphism
5.3.2 Types of Metamorphism
Not Applicable
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism
5.3.3 Weathering
5.3.4 Types of Weathering
Biological Weathering, Chemical Weathering
Not Applicable
5.3.5 Erosion
5.3.6 Types of Erosion
Chemical Erosion, Water Erosion, Wind Erosion
Not Applicable
6 Properties
6.1 Physical Properties
6.1.1 Hardness
6-76.5
Coal
1 7
6.1.2 Grain Size
Medium to Coarse Grained
Fine Grained
6.1.3 Fracture
Not Available
Irregular
6.1.4 Streak
White
Light to dark brown
6.1.5 Porosity
Very Less Porous
Less Porous
6.1.6 Luster
Vitreous
Waxy and Dull
6.1.7 Compressive Strength
175.00 N/mm2NA
What Is Obsidian
0.15 450
6.1.8 Cleavage
Imperfect
Slaty
6.1.9 Toughness
Not Available
2.4
6.1.10 Specific Gravity
2.8-3.02.86
Granite
0 8.4
6.1.11 Transparency
Opaque
Opaque
6.1.12 Density
3.06-3.33 g/cm32.8-2.9 g/cm3
Granite
0 1400
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
0.14 kJ/Kg K0.92 kJ/Kg K
Granite
0.14 3.2
6.2.2 Resistance
Heat Resistant, Wear Resistant
Heat Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam
China, India, Russia, Saudi Arabia, South Korea, Sri Lanka
7.1.2 Africa
Angola, Egypt, Madagascar, Nigeria, South Africa
South Africa, Western Africa
7.1.3 Europe
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic, Venezuela
United Kingdom
7.1.4 Others
Not Yet Found
Not Yet Found
7.2 Deposits in Western Continents
7.2.1 North America
Canada, USA
Canada
7.2.2 South America
Not Yet Found
Brazil, Colombia, Paraguay
7.3 Deposits in Oceania Continent
7.3.1 Australia
Not Yet Found
Central Australia, Western Australia

All about Granulite and Skarn Properties

Know all about Granulite and Skarn properties here. All properties of rocks are important as they define the type of rock and its application. Granulite and Skarn belong to Metamorphic Rocks.Texture of Granulite is Granoblastic whereas that of Skarn is Earthy, Mud-rich, Rough. Granulite appears Veined or Pebbled and Skarn appears Dull. The luster of Granulite is vitreous while that of Skarn is waxy and dull. Granulite is available in black, brown colors whereas Skarn is available in black, brown, colourless, green, grey, white colors. The commercial uses of Granulite are curling, gemstone, laboratory bench tops, soil conditioner, tombstones and that of Skarn are creating artwork, gemstone, jewelry, metallurgical flux, source of magnesia (mgo).