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Whiteschist and Shonkinite


Shonkinite and Whiteschist


Definition

Definition
Whiteschist is an uncommon rock type belonging to a class of metamorphic rock, this is formed at high-ultra-high pressures   
Shonkinite is a rare, dark-coloured and intrusive igneous rock which contains augite and orthoclase feldspar as its primary constituents   

History
  
  

Origin
Tasmania   
USA   

Discoverer
Unknown   
Unknown   

Etymology
From French schiste, Greek skhistos i.e. split   
From the name of Shonkin Sag ranges in the Highwood Mountains of north-central Montana, US   

Class
Metamorphic Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Soft Rock   
Durable Rock, Medium Hardness Rock   

Family
  
  

Group
Not Applicable   
Not Applicable   

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

Texture

Texture
Foliated   
Earthy   

Color
Colourless, Green, Grey, White   
Brown, Buff, Cream, Green, Grey, Pink, White   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
No   
No   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
Yes   

Wind Resistant
No   
No   

Acid Resistant
No   
No   

Appearance
Banded and Foilated   
Banded and Foilated   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
for Road Aggregate   
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories   

Medical Industry
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines   
Artifacts, Monuments, Sculpture   

Other Uses
  
  

Commercial Uses
Creating Artwork, Gemstone, Jewelry, Production of Lime   
Cemetery Markers, Creating Artwork   

Types

Types
Not Available   
Not Available   

Features
High percentage of mica, Host Rock for Lead   
Available in Lots of Colors and Patterns, Is one of the oldest rock, Matrix variable   

Archaeological Significance
  
  

Monuments
Used   
Used   

Famous Monuments
Data Not Available   
Data Not Available   

Sculpture
Used   
Used   

Famous Sculptures
Data Not Available   
Data Not Available   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Used   
Used   

Fossils
Absent   
Absent   

Formation

Formation
Whiteschist is formed by dynamic metamorphism at high temperatures and pressures that aligns the grains of mica, hornblende and other elongated minerals into thin layers.   
Shonkinites are formed due to alkaline igneous activities and are generally formed in thick continental crustal areas or in Cordilleran subduction zones.   

Composition
  
  

Mineral Content
Carbonate, Coesite, Quartz, Silica   
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz   

Compound Content
CaO, Mg, MgO, Silicon Dioxide   
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide   

Transformation
  
  

Metamorphism
No   
Yes   

Types of Metamorphism
Not Applicable   
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism   

Weathering
Yes   
Yes   

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering   
Biological Weathering, Chemical Weathering, Mechanical Weathering   

Erosion
Yes   
Yes   

Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion   
Chemical Erosion, Coastal Erosion, Sea Erosion, Water Erosion   

Properties

Physical Properties
  
  

Hardness
1.5   
5.5-6   

Grain Size
Fine to Medium Grained   
Medium to Fine Coarse Grained   

Fracture
Conchoidal   
Not Available   

Streak
White   
White   

Porosity
Less Porous   
Less Porous   

Luster
Subvitreous to Dull   
Subvitreous to Dull   

Compressive Strength
200.00 N/mm2   
10
150.00 N/mm2   
14

Cleavage
Perfect   
Perfect   

Toughness
1   
Not Available   

Specific Gravity
2.86   
2.6-2.7   

Transparency
Opaque   
Opaque   

Density
2.8-2.9 g/cm3   
2.6-2.8 g/cm3   

Thermal Properties
  
  

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

Resistance
Heat Resistant   
Heat Resistant, Impact Resistant, Wear Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam   
China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam   

Africa
Egypt, Ethiopia, Morocco, Nigeria, South Africa   
Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa   

Europe
Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland   
Bulgaria, England, Germany, Norway, Romania, Switzerland   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Canada, Costa Rica, Cuba, Mexico, Panama, USA   
USA   

South America
Brazil, Colombia, Guyana   
Brazil, Chile   

Deposits in Oceania Continent
  
  

Australia
New South Wales, New Zealand, Queensland   
New Zealand, Queensland, South Australia, Western Australia   

Summary >>
<< Reserves

All about Whiteschist and Shonkinite Properties

Know all about Whiteschist and Shonkinite properties here. All properties of rocks are important as they define the type of rock and its application. Whiteschist belongs to Metamorphic Rocks while Shonkinite belongs to Igneous Rocks.Texture of Whiteschist is Foliated whereas that of Shonkinite is Earthy. Whiteschist appears Banded and Foilated and Shonkinite appears Banded and Foilated. The luster of Whiteschist and Shonkinite is subvitreous to dull. Whiteschist is available in colourless, green, grey, white colors whereas Shonkinite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Whiteschist are creating artwork, gemstone, jewelry, production of lime and that of Shonkinite are cemetery markers, creating artwork.

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