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Hornfels vs Whiteschist


Whiteschist vs Hornfels


Definition

Definition
Hornfels is a metamorphic rock formed by the contact between mudstone or other clay rich rock, and a hot igneous body, and represents a heat altered equivalent of the original rock   
Whiteschist is an uncommon rock type belonging to a class of metamorphic rock, this is formed at high-ultra-high pressures   

History
  
  

Origin
New Zealand   
Tasmania   

Discoverer
Unknown   
Unknown   

Etymology
From German which means hornstone   
From French schiste, Greek skhistos i.e. split   

Class
Metamorphic Rocks   
Metamorphic Rocks   

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

Family
  
  

Group
Not Applicable   
Not Applicable   

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

Texture

Texture
Granular, Platy   
Foliated   

Color
Brown, Dark Greenish - Grey, Green, Reddish Brown   
Colourless, Green, Grey, White   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
No   

Scratch Resistant
No   
Yes   

Stain Resistant
No   
Yes   

Wind Resistant
No   
No   

Acid Resistant
No   
No   

Appearance
Dull   
Banded and Foilated   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing   
Curbing   

Industry
  
  

Construction Industry
for Road Aggregate, Roadstone   
for Road Aggregate   

Medical Industry
Not Yet Used   
Not Yet Used   

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

Other Uses
  
  

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

Types

Types
Biotite hornfels   
Not Available   

Features
Smooth to touch   
High percentage of mica, Host Rock for Lead   

Archaeological Significance
  
  

Monuments
Used   
Used   

Famous Monuments
Data Not Available   
Data Not Available   

Sculpture
Not Yet Used   
Used   

Famous Sculptures
Not Applicable   
Data Not Available   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Not Yet Used   
Used   

Fossils
Absent   
Absent   

Formation

Formation
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Hornfels is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.   
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.   

Composition
  
  

Mineral Content
Andalusite   
Carbonate, Coesite, Quartz, Silica   

Compound Content
Fe, Mg   
CaO, Mg, MgO, Silicon Dioxide   

Transformation
  
  

Metamorphism
No   
No   

Types of Metamorphism
Not Applicable   
Not Applicable   

Weathering
Yes   
Yes   

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

Erosion
Yes   
Yes   

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

Properties

Physical Properties
  
  

Hardness
2-3   
1.5   

Grain Size
Fine Grained   
Fine to Medium Grained   

Fracture
Conchoidal   
Conchoidal   

Streak
Unknown   
White   

Porosity
Highly Porous   
Less Porous   

Luster
Shiny   
Subvitreous to Dull   

Compressive Strength
5.80 N/mm2   
31
200.00 N/mm2   
10

Cleavage
Perfect   
Perfect   

Toughness
Not Yet Found   
1   

Specific Gravity
3.4-3.9   
2.86   

Transparency
Opaque   
Opaque   

Density
0.25-0.30 g/cm3   
2.8-2.9 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.84 kJ/Kg K   
15
0.92 kJ/Kg K   
10

Resistance
Heat Resistant, Impact Resistant, Pressure Resistant   
Heat Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
Bangladesh, Bhutan, China, India, North Korea, Qatar, Russia, Saudi Arabia, South Korea, Thailand   
Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam   

Africa
Cameroon, East Africa, Tanzania, Western Africa   
Egypt, Ethiopia, Morocco, Nigeria, South Africa   

Europe
United Kingdom   
Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

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

South America
Bolivia, Brazil, Colombia, Ecuador   
Brazil, Colombia, Guyana   

Deposits in Oceania Continent
  
  

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

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Hornfels vs Whiteschist 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 Hornfels and Whiteschist Reserves. Hornfels is a metamorphic rock formed by the contact between mudstone or other clay rich rock, and a hot igneous body, and represents a heat altered equivalent of the original rock. Whiteschist is an uncommon rock type belonging to a class of metamorphic rock, this is formed at high-ultra-high pressures. 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 Hornfels vs Whiteschist information and Hornfels vs Whiteschist characteristics in the upcoming sections.

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Hornfels vs Whiteschist 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. Hornfels vs Whiteschist characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Hornfels and Properties of Whiteschist. Learn more about Hornfels vs Whiteschist in the next section. The interior uses of Hornfels include Decorative aggregates, Flooring, Homes and Interior decoration whereas the interior uses of Whiteschist include Decorative aggregates and Interior decoration. Due to some exceptional properties of Hornfels and Whiteschist, they have various applications in construction industry. The uses of Hornfels in construction industry include For road aggregate, Roadstone and that of Whiteschist include For road aggregate.

More about Hornfels and Whiteschist

Here you can know more about Hornfels and Whiteschist. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Hornfels and Whiteschist consists of mineral content and compound content. The mineral content of Hornfels includes Andalusite and mineral content of Whiteschist includes Carbonate, Coesite, Quartz, Silica. You can also check out the list of all Metamorphic Rocks. When we have to compare Hornfels vs Whiteschist, the texture, color and appearance plays an important role in determining the type of rock. Hornfels is available in brown, dark greenish - grey, green, reddish brown colors whereas, Whiteschist is available in colourless, green, grey, white colors. Appearance of Hornfels is Dull and that of Whiteschist is Banded and Foilated. Properties of rock is another aspect for Hornfels vs Whiteschist. The hardness of Hornfels is 2-3 and that of Whiteschist is 1.5. The types of Hornfels are Biotite hornfels whereas types of Whiteschist are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Hornfels is unknown while that of Whiteschist is white. The specific heat capacity of Hornfels is 0.84 kJ/Kg K and that of Whiteschist 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.Hornfels is heat resistant, impact resistant, pressure resistant whereas Whiteschist is heat resistant.

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