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Shoshonite
Shoshonite

Skarn
Skarn



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Shoshonite
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Shoshonite vs Skarn

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Definition

Definition

Shoshonite is a basaltic rock, properly a potassic trachyandesite, composed of olivine, augite and plagioclase phenocrysts in a groundmass with calcic plagioclase and sanidine and some dark-colored volcanic glass
Skarns are formed during regional or contact metamorphism and from a variety of metasomatic processes involving fluids of magmatic, metamorphic, and/or marine origin

History

Origin

Wyoming,USA
USA, Australia

Discoverer

Iddings
Tornebohm

Etymology

From the place of origin called Shoshone riverin Wyoming
From an old Swedish mining term originally used to describe a type of silicate gangue or waste rock.

Class

Igneous Rocks
Metamorphic Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock

Family

Group

Volcanic
Not Applicable

Other Categories

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

Texture

Texture

Porphyritic
Earthy, Mud-rich, Rough

Color

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

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Dull
Dull

Uses

Architecture

Interior Uses

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

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone
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

Medical Industry

Not Available
Not Applicable

Antiquity Uses

Sculpture
Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Cemetery Markers, Creating Artwork
Creating Artwork, Gemstone, Jewelry, Metallurgical Flux, Source of Magnesia (MgO)

Types

Types

-9999
Endoskarns

Features

Has High structural resistance against erosion and climate, Very fine grained rock
Host Rock for Lead, Zinc and Copper Deposits

Archaeological Significance

Monuments

Not Yet Used
Used

Famous Monuments

Not Applicable
Not Available

Sculpture

Used
Used

Famous Sculptures

Not Available
Not Available

Pictographs

Used
Not Used

Petroglyphs

Used
Not Used

Figurines

Used
Used

Fossils

Absent
Absent

Formation

Formation

Shoshonite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.
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.

Composition

Mineral Content

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

Compound Content

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

Transformation

Metamorphism

Types of Metamorphism

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

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
Not Applicable

Erosion

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion
Not Applicable

Properties

Physical Properties

Hardness

66.5
1 7
👆🏻

Grain Size

Medium to Fine Coarse Grained
Fine Grained

Fracture

Uneven
Irregular

Streak

White to Grey
Light to dark brown

Porosity

Less Porous
Less Porous

Luster

Dull
Waxy and Dull

Compressive Strength

NANA
0.15 450
👆🏻

Cleavage

Not Available
Slaty

Toughness

1.6
2.4

Specific Gravity

2.982.86
0 8.4
👆🏻

Transparency

Opaque
Opaque

Density

2.9-3 g/cm32.8-2.9 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

NA0.92 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Pressure Resistant
Heat Resistant

Reserves

Deposits in Eastern Continents

Asia

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

Africa

South Africa
South Africa, Western Africa

Europe

Iceland
United Kingdom

Others

Not Available
Not Available

Deposits in Western Continents

North America

Canada, USA
Canada

South America

Brazil
Brazil, Colombia, Paraguay

Deposits in Oceania Continent

Australia

Not Available
Central Australia, Western Australia

Shoshonite vs Skarn 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 Shoshonite and Skarn Reserves. Shoshonite is a basaltic rock, properly a potassic trachyandesite, composed of olivine, augite and plagioclase phenocrysts in a groundmass with calcic plagioclase and sanidine and some dark-colored volcanic glass. Skarns are formed during regional or contact metamorphism and from a variety of metasomatic processes involving fluids of magmatic, metamorphic, and/or marine origin. 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 Shoshonite vs Skarn information and Shoshonite vs Skarn characteristics in the upcoming sections.

Shoshonite vs Skarn 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. Shoshonite vs Skarn characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Shoshonite and Properties of Skarn. Learn more about Shoshonite vs Skarn in the next section. The interior uses of Shoshonite include Decorative aggregates, Homes and Interior decoration whereas the interior uses of Skarn include Decorative aggregates, Entryways and Interior decoration. Due to some exceptional properties of Shoshonite and Skarn, they have various applications in construction industry. The uses of Shoshonite in construction industry include As dimension stone, Cobblestones, Rail track ballast, Roadstone and that of Skarn 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.

More about Shoshonite and Skarn

Here you can know more about Shoshonite and Skarn. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Shoshonite and Skarn consists of mineral content and compound content. The mineral content of Shoshonite includes Pyroxene and mineral content of Skarn includes Calcite, Enstatite, Epidote, Garnet, Magnetite, Pyroxene, Titanite. You can also check out the list of all Igneous Rocks. When we have to compare Shoshonite vs Skarn, the texture, color and appearance plays an important role in determining the type of rock. Shoshonite is available in brown- black, dark brown colors whereas, Skarn is available in black, brown, green, grey, white colors. Appearance of Shoshonite is Dull and that of Skarn is Dull. Properties of rock is another aspect for Shoshonite vs Skarn. The hardness of Shoshonite is 6 and that of Skarn is 6.5. The types of Shoshonite are whereas types of Skarn are Endoskarns. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Shoshonite is white to grey while that of Skarn is light to dark brown. The specific heat capacity of Shoshonite is Not Available and that of Skarn 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.Shoshonite is heat resistant, pressure resistant whereas Skarn is heat resistant.