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Skarn
Skarn

Granulite
Granulite



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Granulite

Skarn vs Granulite

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Definition

Definition

Skarns are formed during regional or contact metamorphism and from a variety of metasomatic processes involving fluids of magmatic, metamorphic, and/or marine origin
Granulite is fine to medium grained metamorphic rock with a granular of polygonal crystals.

History

Origin

USA, Australia
Central Europe

Discoverer

Tornebohm
Unknown

Etymology

From an old Swedish mining term originally used to describe a type of silicate gangue or waste rock.
From Latin granulum, a little grain or fine grained

Class

Metamorphic Rocks
Metamorphic Rocks

Sub-Class

Durable Rock, Hard Rock
Durable Rock, Hard Rock

Family

Group

-
-

Other Categories

Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Medium Grained Rock, Opaque Rock

Texture

Texture

Earthy, Mud-rich, Rough
Granoblastic

Color

Black, Brown, Green, Grey, White
Black, Brown

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Dull
Veined or Pebbled

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Interior Decoration
Bathrooms, Countertops, Decorative Aggregates, Entryways, Flooring, Homes, Hotels, Interior Decoration, Kitchens, Stair Treads

Exterior Uses

As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

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
As Dimension Stone, Building houses or walls

Medical Industry

-
-

Antiquity Uses

Artifacts, Monuments, Sculpture
Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Creating Artwork, Gemstone, Jewelry, Metallurgical Flux, Source of Magnesia (MgO)
Curling, Gemstone, Laboratory bench tops, Soil Conditioner, Tombstones

Types

Types

Endoskarns
Metamorphic rock

Features

Host Rock for Lead, Zinc and Copper Deposits
Clasts are smooth to touch

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Absent

Formation

Formation

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.
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.

Composition

Mineral Content

Calcite, Enstatite, Epidote, Garnet, Magnetite, Pyroxene, Titanite
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Quartz

Compound Content

Au, CaO, Carbon Dioxide, Cu, Fe, MgO
Aluminium Oxide, CaO, Carbon Dioxide, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Sulfur Dioxide, Titanium Dioxide

Transformation

Metamorphism

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism
-

Weathering

Types of Weathering

-
Biological Weathering, Chemical Weathering

Erosion

Types of Erosion

-
Chemical Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

6.56-7
1 7
👆🏻

Grain Size

Fine Grained
Medium to Coarse Grained

Fracture

Irregular
-

Streak

Light to dark brown
White

Porosity

Less Porous
Very Less Porous

Luster

Waxy and Dull
Vitreous

Compressive Strength

70.00 N/mm2175.00 N/mm2
0.15 450
👆🏻

Cleavage

Slaty
-

Toughness

2.4
-

Specific Gravity

2.862.8-3.0
0 8.4
👆🏻

Transparency

Opaque
Opaque

Density

2.8-2.9 g/cm33.06-3.33 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K0.14 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant
Heat Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India, Russia, Saudi Arabia, South Korea, Sri Lanka
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam

Africa

South Africa, Western Africa
Angola, Egypt, Madagascar, Nigeria, South Africa

Europe

United Kingdom
Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic

Others

-
-

Deposits in Western Continents

North America

Canada
Canada, USA

South America

Brazil, Colombia, Paraguay
-

Deposits in Oceania Continent

Australia

Central Australia, Western Australia
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Skarn vs Granulite 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 Skarn and Granulite Reserves. Skarns are formed during regional or contact metamorphism and from a variety of metasomatic processes involving fluids of magmatic, metamorphic, and/or marine origin. Granulite is fine to medium grained metamorphic rock with a granular of polygonal crystals.. 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 Skarn vs Granulite information and Skarn vs Granulite characteristics in the upcoming sections.

Skarn vs Granulite 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. Skarn vs Granulite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Skarn and Properties of Granulite. Learn more about Skarn vs Granulite in the next section. The interior uses of Skarn include Decorative aggregates, Entryways and Interior decoration whereas the interior uses of Granulite include Bathrooms, Countertops, Decorative aggregates, Entryways, Flooring, Homes, Hotels, Interior decoration, Kitchens and Stair treads. Due to some exceptional properties of Skarn and Granulite, they have various applications in construction industry. The uses of Skarn in construction industry include 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 and that of Granulite include As dimension stone, Building houses or walls.

More about Skarn and Granulite

Here you can know more about Skarn and Granulite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Skarn and Granulite consists of mineral content and compound content. The mineral content of Skarn includes Calcite, Enstatite, Epidote, Garnet, Magnetite, Pyroxene, Titanite and mineral content of Granulite includes Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Quartz. You can also check out the list of all Metamorphic Rocks. When we have to compare Skarn vs Granulite, the texture, color and appearance plays an important role in determining the type of rock. Skarn is available in black, brown, green, grey, white colors whereas, Granulite is available in black, brown colors. Appearance of Skarn is Dull and that of Granulite is Veined or Pebbled. Properties of rock is another aspect for Skarn vs Granulite. The hardness of Skarn is 6.5 and that of Granulite is 6-7. The types of Skarn are Endoskarns whereas types of Granulite are Metamorphic rock. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Skarn is light to dark brown while that of Granulite is white. The specific heat capacity of Skarn is 0.92 kJ/Kg K and that of Granulite is 0.14 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Skarn is heat resistant whereas Granulite is heat resistant, wear resistant.