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Skarn
Skarn

Kimberlite
Kimberlite



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Kimberlite

Skarn vs Kimberlite

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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
Kimberlite is a rare, blue-tinged, coarse-grained intrusive igneous rock, which sometimes contains diamonds and is mostly found in South Africa and Siberia.

History

Origin

USA, Australia
Kimberley, South Africa

Discoverer

Tornebohm
John W. Judd

Etymology

From an old Swedish mining term originally used to describe a type of silicate gangue or waste rock.
From Kimberley +‎ -ite, from the name of the South African town of Kimberley where the rock was first found.

Class

Metamorphic Rocks
Igneous Rocks

Sub-Class

Durable Rock, Hard Rock
Durable Rock, Hard Rock

Family

Group

-
Volcanic

Other Categories

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

Texture

Texture

Earthy, Mud-rich, Rough
Porphyritic

Color

Black, Brown, Green, Grey, White
Black, Bluish - Grey, Brown, Dark Greenish - Grey, Green, Grey

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Dull
Dull and Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Interior Decoration
Countertops, Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

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

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 a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories

Medical Industry

-
Taken as a Supplement for Calcium or Magnesium

Antiquity Uses

Artifacts, Monuments, Sculpture
Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Creating Artwork, Gemstone, Jewelry, Metallurgical Flux, Source of Magnesia (MgO)
An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO)

Types

Types

Endoskarns
Basaltic Kimberlites and Micaceous Kimberlites

Features

Host Rock for Lead, Zinc and Copper Deposits
Always found as volcanic pipes over deep continental crust, Host rock for Diamond, Is one of the oldest rock, Surfaces are often shiny

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.
Kimberlite is an igneous rock and is the main source of diamonds. Its formation takes place deep beneath the Earth’s surface between 150 to 450 kilometres, and are erupted rapidly and violently.

Composition

Mineral Content

Calcite, Enstatite, Epidote, Garnet, Magnetite, Pyroxene, Titanite
Garnet, Olivine, Phlogopite, Pyroxene

Compound Content

Au, CaO, Carbon Dioxide, Cu, Fe, MgO
Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Silicon Dioxide, Titanium Dioxide

Transformation

Metamorphism

Types of Metamorphism

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

Weathering

Types of Weathering

-
Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

Types of Erosion

-
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

6.56-7
1 7
👆🏻

Grain Size

Fine Grained
Fine to Coarse Grained

Fracture

Irregular
Conchoidal

Streak

Light to dark brown
White

Porosity

Less Porous
Very Less Porous

Luster

Waxy and Dull
Subvitreous to Dull

Compressive Strength

70.00 N/mm2260.00 N/mm2
0.15 450
👆🏻

Cleavage

Slaty
Conchoidal

Toughness

2.4
-

Specific Gravity

2.862.86-2.87
0 8.4
👆🏻

Transparency

Opaque
Translucent to Opaque

Density

2.8-2.9 g/cm32.95-2.96 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K0.92 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant
Heat Resistant, Impact Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India, Russia, Saudi Arabia, South Korea, Sri Lanka
Russia

Africa

South Africa, Western Africa
Angola, Botswana, Cameroon, Ethiopia, South Africa

Europe

United Kingdom
England, Hungary, Iceland, United Kingdom

Others

-
Antarctica

Deposits in Western Continents

North America

Canada
Canada, USA

South America

Brazil, Colombia, Paraguay
Argentina, Colombia, Ecuador

Deposits in Oceania Continent

Australia

Central Australia, Western Australia
New South Wales, New Zealand, South Australia, Western Australia

Skarn vs Kimberlite 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 Kimberlite 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. Kimberlite is a rare, blue-tinged, coarse-grained intrusive igneous rock, which sometimes contains diamonds and is mostly found in South Africa and Siberia.. 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 Kimberlite information and Skarn vs Kimberlite characteristics in the upcoming sections.

Skarn vs Kimberlite 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 Kimberlite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Skarn and Properties of Kimberlite. Learn more about Skarn vs Kimberlite in the next section. The interior uses of Skarn include Decorative aggregates, Entryways and Interior decoration whereas the interior uses of Kimberlite include Countertops, Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Skarn and Kimberlite, 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 Kimberlite 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, Cement manufacture, For road aggregate, Making natural cement, Manufacture of magnesium and dolomite refractories.

More about Skarn and Kimberlite

Here you can know more about Skarn and Kimberlite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Skarn and Kimberlite consists of mineral content and compound content. The mineral content of Skarn includes Calcite, Enstatite, Epidote, Garnet, Magnetite, Pyroxene, Titanite and mineral content of Kimberlite includes Garnet, Olivine, Phlogopite, Pyroxene. You can also check out the list of all Metamorphic Rocks. When we have to compare Skarn vs Kimberlite, 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, Kimberlite is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors. Appearance of Skarn is Dull and that of Kimberlite is Dull and Banded. Properties of rock is another aspect for Skarn vs Kimberlite. The hardness of Skarn is 6.5 and that of Kimberlite is 6-7. The types of Skarn are Endoskarns whereas types of Kimberlite are Basaltic Kimberlites and Micaceous Kimberlites. 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 Kimberlite is white. The specific heat capacity of Skarn is 0.92 kJ/Kg K and that of Kimberlite is 0.92 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 Kimberlite is heat resistant, impact resistant.