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Porphyry
Porphyry

Cataclasite
Cataclasite



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Porphyry vs Cataclasite

1 Definition
1.1 Definition
Porphyry is a reddish-brown to purple igneous rock containing large phenocrysts of various minerals embedded in a fine-grained matrix
Cataclasite is a type of cataclastic rock that is formed by fracturing and comminution during faulting. It is normally cohesive and non-foliated, consisting of angular clasts in a finer-grained matrix
1.2 History
1.2.1 Origin
Egypt
Swiss Alps, Europe
1.2.2 Discoverer
Unknown
Michael Tellinger
1.3 Etymology
From Old French porfire, from Italian porfiro and in some cases directly from Latin porphyrites
From the Italian word cataclasi
1.4 Class
Igneous Rocks
Metamorphic Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
1.5 Family
1.5.1 Group
Plutonic
Not Applicable
1.6 Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Porphyritic
Clastic
2.2 Color
Black, Brown, Colourless, Green, Grey, Red, Rust, White
Brown, Green, White, Yellow
2.3 Maintenance
Less
Less
2.4 Durability
Durable
Durable
2.4.1 Water Resistant
81% Igneous Rocks Rocks have it !
81% Metamorphic Rocks Rocks have it !
2.4.2 Scratch Resistant
86% Igneous Rocks Rocks have it !
65% Metamorphic Rocks Rocks have it !
2.4.3 Stain Resistant
66% Igneous Rocks Rocks have it !
42% Metamorphic Rocks Rocks have it !
2.4.4 Wind Resistant
49% Igneous Rocks Rocks have it !
19% Metamorphic Rocks Rocks have it !
2.4.5 Acid Resistant
48% Igneous Rocks Rocks have it !
15% Metamorphic Rocks Rocks have it !
2.5 Appearance
Dull
Dull and Banded
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Decorative Aggregates, Interior Decoration
Decorative Aggregates, Homes
3.1.2 Exterior Uses
Garden Decoration, Paving Stone
As Building Stone, As Facing Stone, Paving Stone
3.1.3 Other Architectural Uses
Curbing
Curbing
3.2 Industry
3.2.1 Construction Industry
Construction Aggregate
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate
3.2.2 Medical Industry
Not Yet Used
Not Yet Used
3.3 Antiquity Uses
Artifacts, Monuments, Sculpture
Artifacts
3.4 Other Uses
3.4.1 Commercial Uses
Creating Artwork, Gemstone, Jewelry
Commemorative Tablets, Creating Artwork
4 Types
4.1 Types
Rhomb Porphyry
Protocataclasite, Mesocataclasite, Ultracataclasite and Foliated cataclasite
4.2 Features
Generally rough to touch, Is one of the oldest rock, Surfaces are often shiny
Easily splits into thin plates, Is one of the oldest rock
4.3 Archaeological Significance
4.3.1 Monuments
Used
Not Yet Used
4.3.2 Famous Monuments
Data Not Available
Not Applicable
4.3.3 Sculpture
Used
Not Yet Used
4.3.4 Famous Sculptures
Data Not Available
Not Applicable
4.3.5 Pictographs
Not Used
Used
4.3.6 Petroglyphs
Not Used
Used
4.3.7 Figurines
Used
Not Yet Used
4.4 Fossils
Absent
Absent
5 Formation
5.1 Formation
Porphyry is formed in two stages: the magma cools slowly deep within the crust or the magma is cools rapidly as it erupts from a volcano, creating small grains that are usually invisible to naked eye.
Cataclasiste rocks mainly form by pressure deep under the Earth's surface, 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
Biotite, Chert, Feldspar, Garnet, Graphite, Quartz, Silica
Albite, Apatite, Augite, Biotite, Calcite, Enstatite, Epidote, Feldspar, Micas, Muscovite or Illite, Pyroxene, Quartz
5.2.2 Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Titanium Dioxide
Silicon Dioxide
5.3 Transformation
5.3.1 Metamorphism
97% Igneous Rocks Rocks have it !
50% Metamorphic Rocks Rocks have it !
5.3.2 Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism
Not Applicable
5.3.3 Weathering
99% Igneous Rocks Rocks have it !
65% Metamorphic Rocks Rocks have it !
5.3.4 Types of Weathering
Biological Weathering, Chemical Weathering, Not Registered
Mechanical Weathering
5.3.5 Erosion
92% Igneous Rocks Rocks have it !
77% Metamorphic Rocks Rocks have it !
5.3.6 Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion
Coastal Erosion, Wind Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
6-7
3-4
6.1.2 Grain Size
Fine Grained
Fine Grained
6.1.3 Fracture
Irregular
NA
6.1.4 Streak
White
Black
6.1.5 Porosity
Less Porous
Less Porous
6.1.6 Luster
Dull
Vitreous
6.1.7 Compressive Strength
Flint
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Obsidian
ADD ⊕
6.1.8 Cleavage
Imperfect
Not Available
6.1.9 Toughness
1.7
Not Available
6.1.10 Specific Gravity
2.5-4
2.1
6.1.11 Transparency
Translucent to Opaque
Translucent to Opaque
6.1.12 Density
2.5-2.52 g/cm3
2.9-3.1 g/cm3
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
Banded iron for..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Granulite
ADD ⊕
6.2.2 Resistance
Heat Resistant, Impact Resistant
Heat Resistant, Impact Resistant, Pressure Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
China, Kazakhstan, South Korea, Thailand, Turkey, Vietnam
China, India, Russia, Saudi Arabia, South Korea
7.1.2 Africa
Egypt, Ethiopia, Ghana, South Africa
Egypt, Ethiopia, Kenya, Madagascar, Morocco, South Africa
7.1.3 Europe
Finland, France, Germany, Great Britain, Hungary, Iceland, Ireland, Italy, Netherlands, Norway, Romania, Sweden, Switzerland
England, Finland, France, Spain, United Kingdom
7.1.4 Others
Greenland
Not Yet Found
7.2 Deposits in Western Continents
7.2.1 North America
Canada, Cuba, Jamaica, USA
Canada, USA
7.2.2 South America
Bolivia, Brazil, Colombia, Ecuador, Paraguay
Argentina, Colombia
7.3 Deposits in Oceania Continent
7.3.1 Australia
New South Wales, New Zealand, Western Australia
Central Australia, Western Australia

Porphyry vs Cataclasite 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 Porphyry and Cataclasite Reserves. Porphyry is a reddish-brown to purple igneous rock containing large phenocrysts of various minerals embedded in a fine-grained matrix. Cataclasite is a type of cataclastic rock that is formed by fracturing and comminution during faulting. It is normally cohesive and non-foliated, consisting of angular clasts in a finer-grained matrix. 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 Porphyry vs Cataclasite information and Porphyry vs Cataclasite characteristics in the upcoming sections.

Porphyry vs Cataclasite 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. Porphyry vs Cataclasite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Porphyry and Properties of Cataclasite. Learn more about Porphyry vs Cataclasite in the next section. The interior uses of Porphyry include Decorative aggregates and Interior decoration whereas the interior uses of Cataclasite include Decorative aggregates and Homes. Due to some exceptional properties of Porphyry and Cataclasite, they have various applications in construction industry. The uses of Porphyry in construction industry include Construction aggregate and that of Cataclasite include As dimension stone, Building houses or walls, Cement manufacture, Construction aggregate, For road aggregate.

More about Porphyry and Cataclasite

Here you can know more about Porphyry and Cataclasite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Porphyry and Cataclasite consists of mineral content and compound content. The mineral content of Porphyry includes Biotite, Chert, Feldspar, Garnet, Graphite, Quartz, Silica and mineral content of Cataclasite includes Albite, Apatite, Augite, Biotite, Calcite, Enstatite, Epidote, Feldspar, Micas, Muscovite or Illite, Pyroxene, Quartz. You can also check out the list of all Igneous Rocks. When we have to compare Porphyry vs Cataclasite, the texture, color and appearance plays an important role in determining the type of rock. Porphyry is available in black, brown, colourless, green, grey, red, rust, white colors whereas, Cataclasite is available in brown, green, white, yellow colors. Appearance of Porphyry is Dull and that of Cataclasite is Dull and Banded. Properties of rock is another aspect for Porphyry vs Cataclasite. The hardness of Porphyry is 6-7 and that of Cataclasite is 3-4. The types of Porphyry are Rhomb Porphyry whereas types of Cataclasite are Protocataclasite, Mesocataclasite, Ultracataclasite and Foliated cataclasite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Porphyry is white while that of Cataclasite is black. The specific heat capacity of Porphyry is Not Available and that of Cataclasite is Not Available. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Porphyry is heat resistant, impact resistant whereas Cataclasite is heat resistant, impact resistant, pressure resistant.