Metapelite

Cataclasite

Metapelite and Cataclasite

Metapelite

Cataclasite

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Definition

Metapelite is an old and currently not widely used field geological term for a clay rich fine-grained clastic sediment or sedimentary rock, i.e. mud or a mudstone

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

History

Origin

Swiss Alps, Europe

Discoverer

Unknown

Michael Tellinger

Etymology

From Pelos or clay in Greek

From the Italian word cataclasi

Class

Metamorphic Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Other Categories

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

Fine Grained Rock, Opaque Rock

Texture

Foliated

Clastic

Color

Dark Greenish - Grey, Green, Light Green, Light Greenish Grey

Brown, Green, White, Yellow

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Banded

Dull and Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration

Decorative Aggregates, Homes

Exterior Uses

As Building Stone, As Facing Stone

As Building Stone, As Facing Stone, Paving Stone

Other Architectural Uses

Curbing

Industry

Construction Industry

Cement Manufacture, Construction Aggregate, for Road Aggregate

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

Medical Industry

Antiquity Uses

Artifacts

Other Uses

Commercial Uses

Commemorative Tablets, Creating Artwork

Types

Metamorphic rock

Protocataclasite, Mesocataclasite, Ultracataclasite and Foliated cataclasite

Features

Easily splits into thin plates, It is One of the Oldest, Strongest and Hardest Rock

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

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

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

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.

Composition

Mineral Content

Albite, Chlorite, Quartz

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

Compound Content

Aluminium Oxide, CaO, MgO

Silicon Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion

Coastal Erosion, Wind Erosion

Properties

Physical Properties

Hardness

5-63-4

1 7

👆🏻

Grain Size

Medium to Fine Coarse Grained

Fine Grained

Fracture

Fibrous

Streak

Black

Porosity

Highly Porous

Less Porous

Luster

Earthy

Vitreous

Compressive Strength

40.00 N/mm²50.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

Specific Gravity

3.4-3.72.1

0 8.4

👆🏻

Transparency

Opaque

Translucent to Opaque

Density

0-300 g/cm³2.9-3.1 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.72 kJ/Kg K0.84 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

Africa

Western Africa

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

Europe

United Kingdom

England, Finland, France, Spain, United Kingdom

Others

Deposits in Western Continents

North America

Canada, USA

South America

Brazil, Colombia, Ecuador

Argentina, Colombia

Deposits in Oceania Continent

Australia

Central Australia, Western Australia

All about Metapelite and Cataclasite Properties

Know all about Metapelite and Cataclasite properties here. All properties of rocks are important as they define the type of rock and its application. Metapelite and Cataclasite belong to Metamorphic Rocks.Texture of Metapelite is Foliated whereas that of Cataclasite is Clastic. Metapelite appears Banded and Cataclasite appears Dull and Banded. The luster of Metapelite is earthy while that of Cataclasite is vitreous. Metapelite is available in dark greenish - grey, green, light green, light greenish grey colors whereas Cataclasite is available in brown, green, white, yellow colors. The commercial uses of Metapelite and Cataclasite are commemorative tablets, creating artwork.