Schist

Metapelite

Schist and Metapelite

Schist

Metapelite

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1 Definition

1.1 Definition

Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation

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

1.2 History

1.2.1 Origin

Unknown

1.2.2 Discoverer

Unknown

1.3 Etymology

From French schiste, Greek skhistos i.e. split

From Pelos or clay in Greek

1.4 Class

Metamorphic Rocks

1.4.1 Sub-Class

Durable Rock, Medium Hardness Rock

1.5 Family

1.5.1 Group

Not Applicable

1.6 Other Categories

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

2 Texture

2.1 Texture

Foliated, Platy

Foliated

2.2 Color

Black, Blue, Brown, Dark Brown, Green, Grey, Silver

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

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

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81% Metamorphic Rocks Rocks have it !

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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 !

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42% Metamorphic Rocks Rocks have it !

2.4.4 Wind Resistant

✔ ✘

19% Metamorphic Rocks Rocks have it !

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19% Metamorphic Rocks Rocks have it !

2.4.5 Acid Resistant

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15% Metamorphic Rocks Rocks have it !

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15% Metamorphic Rocks Rocks have it !

2.5 Appearance

Layered and Shiny

Banded

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Floor Tiles, Interior Decoration

Decorative Aggregates, Interior Decoration

3.1.2 Exterior Uses

Garden Decoration, Paving Stone

As Building Stone, As Facing Stone

3.1.3 Other Architectural Uses

Not Yet Used

Curbing

3.2 Industry

3.2.1 Construction Industry

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

Cement Manufacture, Construction Aggregate, for Road Aggregate

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts

3.4 Other Uses

3.4.1 Commercial Uses

Used in aquariums, Writing Slates

Commemorative Tablets, Creating Artwork

4 Types

4.1 Types

Mica Schists, Calc-Silicate Schists, Graphite Schists, Blueschists, Whiteschists, Greenschists, Hornblende Schist, Talc Schist, Chlorite Schist, Garnet Schist, Glaucophane schist.

Not Available

4.2 Features

Easily splits into thin plates, Smooth to touch

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

4.3 Archaeological Significance

4.3.1 Monuments

Not Yet Used

4.3.2 Famous Monuments

Not Applicable

4.3.3 Sculpture

Not Yet Used

4.3.4 Famous Sculptures

Not Applicable

4.3.5 Pictographs

Used

4.3.6 Petroglyphs

Used

4.3.7 Figurines

Not Yet Used

4.4 Fossils

Absent

5 Formation

5.1 Formation

Schist formed by dynamic metamorphism at high temperatures and pressures that aligns the grains of mica, hornblende and other elongated minerals into thin layers.

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.

5.2 Composition

5.2.1 Mineral Content

Alusite, Amphibole, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc

Albite, Chlorite, Quartz

5.2.2 Compound Content

CaO, Carbon Dioxide, MgO

Aluminium Oxide, CaO, MgO

5.3 Transformation

5.3.1 Metamorphism

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50% Metamorphic Rocks Rocks have it !

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50% Metamorphic Rocks Rocks have it !

5.3.2 Types of Metamorphism

Not Applicable

5.3.3 Weathering

✔ ✘

65% Metamorphic Rocks Rocks have it !

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65% Metamorphic Rocks Rocks have it !

5.3.4 Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

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77% Metamorphic Rocks Rocks have it !

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77% Metamorphic Rocks Rocks have it !

5.3.6 Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

3.5-4

5-6

6.1.2 Grain Size

Medium to Fine Coarse Grained

6.1.3 Fracture

Conchoidal

Fibrous

6.1.4 Streak

White

Unknown

6.1.5 Porosity

Highly Porous

6.1.6 Luster

Shiny

Earthy

6.1.7 Compressive Strength

What Is Flint

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▼

Not Available

Rank: N/A (Overall)▶

Not Available

Rank: N/A (Overall)▶

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What Is Obsidian

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175 (What Is Grani..)

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6.1.8 Cleavage

Slaty

Not Available

6.1.9 Toughness

1.5

Not Available

6.1.10 Specific Gravity

2.5-2.9

3.4-3.7

6.1.11 Transparency

Opaque

6.1.12 Density

2.8-2.9 g/cm³

0-300 g/cm³

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

What Is Banded ..

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Not Available

Rank: N/A (Overall)▶

0.72 kJ/Kg K

Rank: 20 (Overall)▶

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What Is Granulite

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1.09 (What Is Trave..)

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6.2.2 Resistance

Impact Resistant, Pressure Resistant, Water Resistant

Heat Resistant, Impact Resistant, Pressure Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam

Not Yet Found

7.1.2 Africa

Egypt, Ethiopia, Morocco, Nigeria, South Africa

Western Africa

7.1.3 Europe

Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland

United Kingdom

7.1.4 Others

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Canada, Costa Rica, Cuba, Mexico, Panama, USA

Not Available

7.2.2 South America

Brazil, Colombia, Guyana

Brazil, Colombia, Ecuador

7.3 Deposits in Oceania Continent

7.3.1 Australia

New South Wales, New Zealand, Queensland

Central Australia, Western Australia

All about Schist and Metapelite Properties

Know all about Schist and Metapelite properties here. All properties of rocks are important as they define the type of rock and its application. Schist and Metapelite belong to Metamorphic Rocks.Texture of Schist is Foliated, Platy whereas that of Metapelite is Foliated. Schist appears Layered and Shiny and Metapelite appears Banded. The luster of Schist is shiny while that of Metapelite is earthy. Schist is available in black, blue, brown, dark brown, green, grey, silver colors whereas Metapelite is available in dark greenish - grey, green, light green, light greenish grey colors. The commercial uses of Schist are used in aquariums, writing slates and that of Metapelite are commemorative tablets, creating artwork.