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Mylonite
Mylonite

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Hornfels



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Mylonite vs Hornfels

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1 Definition
1.1 Definition
Mylonite is a metamorphic rock formed by ductile deformation during intense shearing encountered during folding and faulting, a process termed cataclastic or dynamic metamorphism
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
1.2 History
1.2.1 Origin
New Zealand
New Zealand
1.2.2 Discoverer
Unknown
Unknown
1.3 Etymology
From Greek mulōn mill + -ite
From German which means hornstone
1.4 Class
Metamorphic Rocks
Metamorphic Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
1.5 Family
1.5.1 Group
Not Applicable
Not Applicable
1.6 Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Foliated
Granular, Platy
2.2 Color
Black to Grey
Brown, Dark Greenish - Grey, Green, Reddish Brown
2.3 Maintenance
Less
Less
2.4 Durability
Durable
Durable
2.4.1 Water Resistant
81% Metamorphic Rocks Rocks have it !
81% Metamorphic Rocks Rocks have it !
2.4.2 Scratch Resistant
65% Metamorphic Rocks Rocks have it !
65% Metamorphic Rocks Rocks have it !
2.4.3 Stain Resistant
42% Metamorphic Rocks Rocks have it !
42% Metamorphic Rocks Rocks have it !
2.4.4 Wind Resistant
19% Metamorphic Rocks Rocks have it !
19% Metamorphic Rocks Rocks have it !
2.4.5 Acid Resistant
15% Metamorphic Rocks Rocks have it !
15% Metamorphic Rocks Rocks have it !
2.5 Appearance
Dull, Banded and Foilated
Dull
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Decorative Aggregates, Interior Decoration
Decorative Aggregates, Flooring, Homes, Interior Decoration
3.1.2 Exterior Uses
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
3.1.3 Other Architectural Uses
Curbing
Curbing
3.2 Industry
3.2.1 Construction Industry
for Road Aggregate, Landscaping, Roadstone
for Road Aggregate, Roadstone
3.2.2 Medical Industry
Not Yet Used
Not Yet Used
3.3 Antiquity Uses
Artifacts, Monuments
Artifacts, Monuments
3.4 Other Uses
3.4.1 Commercial Uses
Creating Artwork, Gemstone, Jewelry
Cemetery Markers, Commemorative Tablets, Creating Artwork
4 Types
4.1 Types
Blastomylonites, Ultramylonites and Phyllonites
Biotite hornfels
4.2 Features
Surfaces are often shiny
Smooth to touch
4.3 Archaeological Significance
4.3.1 Monuments
Used
Used
4.3.2 Famous Monuments
Data Not Available
Data Not Available
4.3.3 Sculpture
Used
Not Yet Used
4.3.4 Famous Sculptures
Data Not Available
Not Applicable
4.3.5 Pictographs
Used
Used
4.3.6 Petroglyphs
Used
Used
4.3.7 Figurines
Used
Not Yet Used
4.4 Fossils
Absent
Absent
5 Formation
5.1 Formation
Mylonites are ductilely deformed rocks formed by the accumulation of large shear strain, in ductile fault zones.
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.
5.2 Composition
5.2.1 Mineral Content
Porphyroblasts
Andalusite
5.2.2 Compound Content
Aluminium Oxide, Calcium Sulfate, Chromium(III) Oxide, Iron(III) Oxide, Magnesium Carbonate, Silicon Dioxide
Fe, Mg
5.3 Transformation
5.3.1 Metamorphism
50% Metamorphic Rocks Rocks have it !
50% Metamorphic Rocks Rocks have it !
5.3.2 Types of Metamorphism
Not Applicable
Not Applicable
5.3.3 Weathering
65% Metamorphic Rocks Rocks have it !
65% Metamorphic Rocks Rocks have it !
5.3.4 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering
5.3.5 Erosion
77% Metamorphic Rocks Rocks have it !
77% Metamorphic Rocks Rocks have it !
5.3.6 Types of Erosion
Chemical Erosion, Sea Erosion, Wind Erosion
Chemical Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
3-4
2-3
6.1.2 Grain Size
Fine Grained
Fine Grained
6.1.3 Fracture
Conchoidal
Conchoidal
6.1.4 Streak
White
Unknown
6.1.5 Porosity
Highly Porous
Highly Porous
6.1.6 Luster
Shiny
Shiny
6.1.7 Compressive Strength
Flint
1.28 N/mm2
Rank: 32 (Overall)
5.80 N/mm2
Rank: 31 (Overall)
Obsidian
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6.1.8 Cleavage
Conchoidal
Perfect
6.1.9 Toughness
Not Available
Not Yet Found
6.1.10 Specific Gravity
2.97-3.05
3.4-3.9
6.1.11 Transparency
Opaque
Opaque
6.1.12 Density
2.6-4.8 g/cm3
0.25-0.30 g/cm3
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
Banded iron for..
1.50 kJ/Kg K
Rank: 3 (Overall)
0.84 kJ/Kg K
Rank: 15 (Overall)
Granulite
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6.2.2 Resistance
Heat Resistant, Impact Resistant, Pressure Resistant
Heat Resistant, Impact Resistant, Pressure Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
China, India, Indonesia, Saudi Arabia, South Korea
Bangladesh, Bhutan, China, India, North Korea, Qatar, Russia, Saudi Arabia, South Korea, Thailand
7.1.2 Africa
Eritrea, Ethiopia, Ghana, South Africa, Western Africa
Cameroon, East Africa, Tanzania, Western Africa
7.1.3 Europe
England, Finland, France, Germany, Great Britain, Greece, United Kingdom
United Kingdom
7.1.4 Others
Not Yet Found
Not Yet Found
7.2 Deposits in Western Continents
7.2.1 North America
USA
Canada, USA
7.2.2 South America
Not Yet Found
Bolivia, Brazil, Colombia, Ecuador
7.3 Deposits in Oceania Continent
7.3.1 Australia
Central Australia, Western Australia
New South Wales, New Zealand, Queensland, Western Australia

Mylonite vs Hornfels 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 Mylonite and Hornfels Reserves. Mylonite is a metamorphic rock formed by ductile deformation during intense shearing encountered during folding and faulting, a process termed cataclastic or dynamic metamorphism. 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. 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 Mylonite vs Hornfels information and Mylonite vs Hornfels characteristics in the upcoming sections.

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

More about Mylonite and Hornfels

Here you can know more about Mylonite and Hornfels. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Mylonite and Hornfels consists of mineral content and compound content. The mineral content of Mylonite includes Porphyroblasts and mineral content of Hornfels includes Andalusite. You can also check out the list of all Metamorphic Rocks. When we have to compare Mylonite vs Hornfels, the texture, color and appearance plays an important role in determining the type of rock. Mylonite is available in black to grey colors whereas, Hornfels is available in brown, dark greenish - grey, green, reddish brown colors. Appearance of Mylonite is Dull, Banded and Foilated and that of Hornfels is Dull. Properties of rock is another aspect for Mylonite vs Hornfels. The hardness of Mylonite is 3-4 and that of Hornfels is 2-3. The types of Mylonite are Blastomylonites, Ultramylonites and Phyllonites whereas types of Hornfels are Biotite hornfels. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Mylonite is white while that of Hornfels is unknown. The specific heat capacity of Mylonite is 1.50 kJ/Kg K and that of Hornfels is 0.84 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Mylonite is heat resistant, impact resistant, pressure resistant whereas Hornfels is heat resistant, impact resistant, pressure resistant.

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