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Skarn vs Evaporite


Evaporite vs Skarn


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  
A water-soluble mineral sediment resulting from concentration and crystallization by evaporation from an aqueous solution  

History
  
  

Origin
USA, Australia  
USA  

Discoverer
Tornebohm  
Usiglio  

Etymology
From an old Swedish mining term originally used to describe a type of silicate gangue or waste rock.  
From a sediment left after the evaporation  

Class
Metamorphic Rocks  
Sedimentary Rocks  

Sub-Class
Durable Rock, Hard Rock  
Durable Rock, Soft Rock  

Family
  
  

Group
-  
-  

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

Texture

Texture
Earthy, Mud-rich, Rough  
Earthy  

Color
Black, Brown, Green, Grey, White  
Green, Grey, Silver, White  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
Yes  

Scratch Resistant
Yes  
No  

Stain Resistant
No  
No  

Wind Resistant
Yes  
Yes  

Acid Resistant
Yes  
No  

Appearance
Dull  
Glassy, Vesicular and Foilated  

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Entryways, Interior Decoration  
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration  

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

Other Uses
  
  

Commercial Uses
Creating Artwork, Gemstone, Jewelry, Metallurgical Flux, Source of Magnesia (MgO)  
Used in the manufacture of Ceramic Powder, Used in the preparation of Sulfuric Acid and Silicon Diborite  

Types

Types
Endoskarns  
Sedimentary rock  

Features
Host Rock for Lead, Zinc and Copper Deposits  
Generally rough to touch, Splintery, Veined  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Present  

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.  
Evaporite is water-soluble mineral sediment which forms from concentration and crystallization by evaporation from an aqueous solution.  

Composition
  
  

Mineral Content
Calcite, Enstatite, Epidote, Garnet, Magnetite, Pyroxene, Titanite  
Calcite, Cancrinite, Gypsum, Kyanite, Magnetite  

Compound Content
Au, CaO, Carbon Dioxide, Cu, Fe, MgO  
CaMg(CO3)2, CaO, Calcium Sulfate, KCl, MgO, NaCl  

Transformation
  
  

Metamorphism
Yes  
Yes  

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

Weathering
No  
No  

Types of Weathering
-  
-  

Erosion
No  
No  

Types of Erosion
-  
-  

Properties

Physical Properties
  
  

Hardness
6.5  
2-3  

Grain Size
Fine Grained  
Medium to Fine Coarse Grained  

Fracture
Irregular  
Conchoidal  

Streak
Light to dark brown  
White  

Porosity
Less Porous  
Less Porous  

Luster
Waxy and Dull  
Subvitreous to Dull  

Compressive Strength
70.00 N/mm2  
35
225.00 N/mm2  
8

Cleavage
Slaty  
Perfect  

Toughness
2.4  
-  

Specific Gravity
2.86  
2.86-2.99  

Transparency
Opaque  
Translucent  

Density
2.8-2.9 g/cm3  
2.8-2.9 g/cm3  

Thermal Properties
  
  

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

Resistance
Heat Resistant  
Heat Resistant, Pressure Resistant  

Reserves

Deposits in Eastern Continents
  
  

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

Africa
South Africa, Western Africa  
-  

Europe
United Kingdom  
United Kingdom  

Others
-  
-  

Deposits in Western Continents
  
  

North America
Canada  
USA  

South America
Brazil, Colombia, Paraguay  
Colombia, Paraguay  

Deposits in Oceania Continent
  
  

Australia
Central Australia, Western Australia  
Central Australia, Western Australia  

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Skarn vs Evaporite 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 Evaporite 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. A water-soluble mineral sediment resulting from concentration and crystallization by evaporation from an aqueous solution. 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 Evaporite information and Skarn vs Evaporite characteristics in the upcoming sections.

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Skarn vs Evaporite 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 Evaporite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Skarn and Properties of Evaporite. Learn more about Skarn vs Evaporite in the next section. The interior uses of Skarn include Decorative aggregates, Entryways and Interior decoration whereas the interior uses of Evaporite include Decorative aggregates, Entryways, Flooring, Homes and Interior decoration. Due to some exceptional properties of Skarn and Evaporite, 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 Evaporite 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 Evaporite

Here you can know more about Skarn and Evaporite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Skarn and Evaporite consists of mineral content and compound content. The mineral content of Skarn includes Calcite, Enstatite, Epidote, Garnet, Magnetite, Pyroxene, Titanite and mineral content of Evaporite includes Calcite, Cancrinite, Gypsum, Kyanite, Magnetite. You can also check out the list of all Metamorphic Rocks. When we have to compare Skarn vs Evaporite, 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, Evaporite is available in green, grey, silver, white colors. Appearance of Skarn is Dull and that of Evaporite is Glassy, Vesicular and Foilated. Properties of rock is another aspect for Skarn vs Evaporite. The hardness of Skarn is 6.5 and that of Evaporite is 2-3. The types of Skarn are Endoskarns whereas types of Evaporite are Sedimentary 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 Evaporite is white. The specific heat capacity of Skarn is 0.92 kJ/Kg K and that of Evaporite 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 Evaporite is heat resistant, pressure resistant.

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