Cataclasite

Arkose

Cataclasite and Arkose

Cataclasite

Arkose

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Definition

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

Arkose is a sedimentary rock, specifically a type of sandstone containing at least 25% feldspar

History

Origin

Swiss Alps, Europe

France

Discoverer

Michael Tellinger

Alexandre Brongniart

Etymology

From the Italian word cataclasi

From Auvergne region of France used by a French geologist Alexandre Brongniart in 1826 who applied this term to some feldspathic sandstones

Class

Metamorphic Rocks

Sedimentary Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

Family

Group

Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

Texture

Clastic

Color

Brown, Green, White, Yellow

Reddish Brown

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull and Banded

Rough and Dull

Uses

Architecture

Interior Uses

Decorative Aggregates, Homes

Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

As Building Stone, As Facing Stone, Paving Stone

Paving Stone, Office Buildings

Other Architectural Uses

Curbing

Whetstones

Industry

Construction Industry

As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate

Cement Manufacture, Construction Aggregate, for Road Aggregate, Production of Glass and Ceramics, Raw material for the manufacture of mortar

Medical Industry

Antiquity Uses

Artifacts

Artifacts, Sculpture, Small Figurines

Other Uses

Commercial Uses

Commemorative Tablets, Creating Artwork

In aquifers, Soil Conditioner, Source of Magnesia (MgO), Tombstones

Types

Protocataclasite, Mesocataclasite, Ultracataclasite and Foliated cataclasite

Arkose

Features

Easily splits into thin plates, Is one of the oldest rock

Available in Lots of Colors and Patterns, Generally rough to touch, Is one of the oldest rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Present

Formation

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.

Arkose rock forms from the weathering of feldspar-rich igneous or metamorphic rock, most commonly granitic rocks, which are primarily composed of quartz and feldspar.

Composition

Mineral Content

Albite, Apatite, Augite, Biotite, Calcite, Enstatite, Epidote, Feldspar, Micas, Muscovite or Illite, Pyroxene, Quartz

Calcite, Clay, Clay Minerals, Feldspar, Micas, Quartz

Compound Content

Silicon Dioxide

Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Weathering

✔ ✘

Types of Weathering

Mechanical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Coastal Erosion, Wind Erosion

Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

3-46-7

1 7

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Grain Size

Fine Grained

Coarse Grained

Fracture

Conchoidal

Streak

Black

White

Porosity

Less Porous

Highly Porous

Luster

Vitreous

Dull

Compressive Strength

50.00 N/mm²80.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

Specific Gravity

2.10

0 8.4

👆🏻

Transparency

Translucent to Opaque

Opaque

Density

2.9-3.1 g/cm³-9999 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K0.78 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India, Russia, Saudi Arabia, South Korea

China, India, Kazakhstan, Mongolia, Russia, Uzbekistan

Africa

Egypt, Ethiopia, Kenya, Madagascar, Morocco, South Africa

Namibia, Nigeria, South Africa

Europe

England, Finland, France, Spain, United Kingdom

Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom

Others

Greenland

Deposits in Western Continents

North America

Canada, USA

South America

Argentina, Colombia

Brazil

Deposits in Oceania Continent

Australia

Central Australia, Western Australia

New South Wales, New Zealand

All about Cataclasite and Arkose Properties

Know all about Cataclasite and Arkose properties here. All properties of rocks are important as they define the type of rock and its application. Cataclasite belongs to Metamorphic Rocks while Arkose belongs to Sedimentary Rocks.Texture of Cataclasite is Clastic whereas that of Arkose is Clastic. Cataclasite appears Dull and Banded and Arkose appears Rough and Dull. The luster of Cataclasite is vitreous while that of Arkose is dull. Cataclasite is available in brown, green, white, yellow colors whereas Arkose is available in reddish brown colors. The commercial uses of Cataclasite are commemorative tablets, creating artwork and that of Arkose are in aquifers, soil conditioner, source of magnesia (mgo), tombstones.