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Ignimbrite
Ignimbrite

Epidosite
Epidosite



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Ignimbrite
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Epidosite

Ignimbrite vs Epidosite

Definition

Definition

Ignimbrite is a volcanic rock consisting mainly of pumice fragments, formed by the consolidation of material deposited by pyroclastic flows
Epidosite is a highly altered epidote and quartz bearing rock which is a type of metasomatite, essentially altered basalt

History

Origin

New Zealand
-

Discoverer

Patrick Marshall
Unknown

Etymology

From Latin ignis fire + imber, imbr- shower of rain, storm cloud + -ite
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Class

Igneous Rocks
Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock

Family

Group

Volcanic
Volcanic

Other Categories

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

Texture

Texture

Aphanitic
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular

Color

Beige, Black, Brown, Grey, Pink, White
Black, Brown, Light to Dark Grey

Maintenance

More
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Dull, Vesicular and Foilated
Dull and Soft

Uses

Architecture

Interior Uses

Decorative Aggregates, Floor Tiles, Homes, Interior Decoration
Decorative Aggregates, Floor Tiles, Homes, Hotels, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

Building houses or walls, Construction Aggregate
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone

Medical Industry

-
-

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines
Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Cemetery Markers, Commemorative Tablets, Creating Artwork
Commemorative Tablets, Creating Artwork

Types

Types

Pyroclastic rock
Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB), Tholeiitic Basalt, Basaltic trachyandesite, Mugearite and Shoshonite

Features

Always found as volcanic pipes over deep continental crust
Has High structural resistance against erosion and climate, Very fine grained rock

Archaeological Significance

Monuments

-
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Famous Monuments

-
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Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Absent

Formation

Formation

Ignimbrites are formed from very poorly sorted mixture of volcanic ash or tuff and pumice lapilli, commonly with scattered lithic fragments.
Epidosite 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.

Composition

Mineral Content

Apatite, Biotite, Calcite, Chlorite, Feldspar, Hematite, Hornblade, Ilmenite, Magnetite, Olivine, Pyroxene, Quartz
Olivine, Plagioclase, Pyroxene

Compound Content

Ca, NaCl
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

Transformation

Metamorphism

Types of Metamorphism

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

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

Types of Erosion

Chemical Erosion, Coastal Erosion
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Properties

Physical Properties

Hardness

4-66
1 7
👆🏻

Grain Size

Fine Grained
Fine to Coarse Grained

Fracture

Uneven
Conchoidal

Streak

White
White to Grey

Porosity

Highly Porous
Less Porous

Luster

Vitreous to Dull
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Compressive Strength

243.80 N/mm2160.00 N/mm2
0.15 450
👆🏻

Cleavage

-
-

Toughness

-
2.3

Specific Gravity

2.732.8-3
0 8.4
👆🏻

Transparency

Opaque
Opaque

Density

1-1.8 g/cm3-9999 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.20 kJ/Kg K0.84 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

Afghanistan, Armenia, Azerbaijan, Burma, Cambodia, China, India, Indonesia, Iran, Japan, Malaysia, Mongolia, Nepal, North Korea, Pakistan, Saudi Arabia, Syria, Taiwan, Thailand, Turkey, Vietnam, Yemen
India, Russia

Africa

Cameroon, Cape Verde, Chad, Djibouti, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Tanzania, Uganda
South Africa

Europe

France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
Iceland

Others

Antarctica, Hawaii Islands
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Deposits in Western Continents

North America

Canada, Costa Rica, Panama, USA
Canada, USA

South America

Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador
Brazil

Deposits in Oceania Continent

Australia

Central Australia, Western Australia
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Ignimbrite vs Epidosite 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 Ignimbrite and Epidosite Reserves. Ignimbrite is a volcanic rock consisting mainly of pumice fragments, formed by the consolidation of material deposited by pyroclastic flows. Epidosite is a highly altered epidote and quartz bearing rock which is a type of metasomatite, essentially altered basalt. 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 Ignimbrite vs Epidosite information and Ignimbrite vs Epidosite characteristics in the upcoming sections.

Ignimbrite vs Epidosite 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. Ignimbrite vs Epidosite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Ignimbrite and Properties of Epidosite. Learn more about Ignimbrite vs Epidosite in the next section. The interior uses of Ignimbrite include Decorative aggregates, Floor tiles, Homes and Interior decoration whereas the interior uses of Epidosite include Decorative aggregates, Floor tiles, Homes, Hotels and Interior decoration. Due to some exceptional properties of Ignimbrite and Epidosite, they have various applications in construction industry. The uses of Ignimbrite in construction industry include Building houses or walls, Construction aggregate and that of Epidosite include As dimension stone, Cobblestones, Rail track ballast, Roadstone.

More about Ignimbrite and Epidosite

Here you can know more about Ignimbrite and Epidosite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Ignimbrite and Epidosite consists of mineral content and compound content. The mineral content of Ignimbrite includes Apatite, Biotite, Calcite, Chlorite, Feldspar, Hematite, Hornblade, Ilmenite, Magnetite, Olivine, Pyroxene, Quartz and mineral content of Epidosite includes Olivine, Plagioclase, Pyroxene. You can also check out the list of all Igneous Rocks. When we have to compare Ignimbrite vs Epidosite, the texture, color and appearance plays an important role in determining the type of rock. Ignimbrite is available in beige, black, brown, grey, pink, white colors whereas, Epidosite is available in black, brown, light to dark grey colors. Appearance of Ignimbrite is Dull, Vesicular and Foilated and that of Epidosite is Dull and Soft. Properties of rock is another aspect for Ignimbrite vs Epidosite. The hardness of Ignimbrite is 4-6 and that of Epidosite is 6. The types of Ignimbrite are Pyroclastic rock whereas types of Epidosite are Alkaline Basalt, Boninite, High Alumina Basalt, Mid Ocean Ridge Basalt (MORB), Tholeiitic Basalt, Basaltic trachyandesite, Mugearite and Shoshonite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Ignimbrite is white while that of Epidosite is white to grey. The specific heat capacity of Ignimbrite is 0.20 kJ/Kg K and that of Epidosite 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.Ignimbrite is heat resistant, impact resistant, pressure resistant, wear resistant whereas Epidosite is heat resistant, pressure resistant, wear resistant.