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Shale
Shale

Metapelite
Metapelite



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Shale vs Metapelite

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Definition

Definition

Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles
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

History

Origin

-
-

Discoverer

Johann Gottlob Lehmann
Unknown

Etymology

From German Schalstein laminated limestone, and Schalgebirge layer of stone in stratified rock. From Old English scealu in its base sense of- thing that divides or separate,
From Pelos or clay in Greek

Class

Sedimentary Rocks
Metamorphic Rocks

Sub-Class

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

Family

Group

-
-

Other Categories

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

Texture

Texture

Clastic, Splintery
Foliated

Color

Black, Brown, Buff, Green, Grey, Red, Yellow
Dark Greenish - Grey, Green, Light Green, Light Greenish Grey

Maintenance

More
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Muddy
Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Homes, Interior Decoration
Decorative Aggregates, Interior Decoration

Exterior Uses

As Building Stone, As Facing Stone, Office Buildings
As Building Stone, As Facing Stone

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar
Cement Manufacture, Construction Aggregate, for Road Aggregate

Medical Industry

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-

Antiquity Uses

Artifacts, Sculpture
Artifacts

Other Uses

Commercial Uses

Creating Artwork, Pottery
Commemorative Tablets, Creating Artwork

Types

Types

Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale
Metamorphic rock

Features

Easily splits into thin plates, Generally rough to touch, Very fine grained rock
Easily splits into thin plates, It is One of the Oldest, Strongest and Hardest Rock

Archaeological Significance

Monuments

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-

Famous Monuments

Jantar Mantar in India
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Sculpture

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Famous Sculptures

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Pictographs

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Petroglyphs

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Figurines

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Fossils

Present
Absent

Formation

Formation

Shale forms when very fine-grained clay particles are deposited in water which settle at the bottom of water bodies. They are later compacted hence forming shale.
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.

Composition

Mineral Content

Albite, Biotite, Calcite, Chert, Chlorite, Dolomite, Hematite, Micas, Muscovite or Illite, Pyrite, Quartz, Silica, Sulfides
Albite, Chlorite, Quartz

Compound Content

Ca, Fe, Mg, Silicon Dioxide, Sodium
Aluminium Oxide, CaO, MgO

Transformation

Metamorphism

Types of Metamorphism

-
-

Weathering

Types of Weathering

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

Erosion

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion
Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

35-6
1 7
👆🏻

Grain Size

Very fine-grained
Medium to Fine Coarse Grained

Fracture

-
Fibrous

Streak

White
-

Porosity

Highly Porous
Highly Porous

Luster

Dull
Earthy

Compressive Strength

95.00 N/mm240.00 N/mm2
0.15 450
👆🏻

Cleavage

Slaty
-

Toughness

2.6
-

Specific Gravity

2.2-2.83.4-3.7
0 8.4
👆🏻

Transparency

Opaque
Opaque

Density

2.4-2.8 g/cm30-300 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.39 kJ/Kg K0.72 kJ/Kg K
0.14 3.2
👆🏻

Resistance

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

Reserves

Deposits in Eastern Continents

Asia

Bangladesh, China, India, Russia
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Africa

Ethiopia, Kenya, Morocco, South Africa, Tanzania
Western Africa

Europe

Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
United Kingdom

Others

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Deposits in Western Continents

North America

USA
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South America

Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
Brazil, Colombia, Ecuador

Deposits in Oceania Continent

Australia

New South Wales, New Zealand, Queensland, Victoria, Western Australia
Central Australia, Western Australia

Shale vs Metapelite 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 Shale and Metapelite Reserves. Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles. 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. 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 Shale vs Metapelite information and Shale vs Metapelite characteristics in the upcoming sections.

Shale vs Metapelite 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. Shale vs Metapelite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Shale and Properties of Metapelite. Learn more about Shale vs Metapelite in the next section. The interior uses of Shale include Decorative aggregates, Homes and Interior decoration whereas the interior uses of Metapelite include Decorative aggregates and Interior decoration. Due to some exceptional properties of Shale and Metapelite, they have various applications in construction industry. The uses of Shale in construction industry include Cement manufacture, Construction aggregate, For road aggregate, Making natural cement, Raw material for the manufacture of mortar and that of Metapelite include Cement manufacture, Construction aggregate, For road aggregate.

More about Shale and Metapelite

Here you can know more about Shale and Metapelite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Shale and Metapelite consists of mineral content and compound content. The mineral content of Shale includes Albite, Biotite, Calcite, Chert, Chlorite, Dolomite, Hematite, Micas, Muscovite or Illite, Pyrite, Quartz, Silica, Sulfides and mineral content of Metapelite includes Albite, Chlorite, Quartz. You can also check out the list of all Sedimentary Rocks. When we have to compare Shale vs Metapelite, the texture, color and appearance plays an important role in determining the type of rock. Shale is available in black, brown, buff, green, grey, red, yellow colors whereas, Metapelite is available in dark greenish - grey, green, light green, light greenish grey colors. Appearance of Shale is Muddy and that of Metapelite is Banded. Properties of rock is another aspect for Shale vs Metapelite. The hardness of Shale is 3 and that of Metapelite is 5-6. The types of Shale are Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale whereas types of Metapelite are Metamorphic rock. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Shale is white while that of Metapelite is . The specific heat capacity of Shale is 0.39 kJ/Kg K and that of Metapelite is 0.72 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Shale is heat resistant, impact resistant whereas Metapelite is heat resistant, impact resistant, pressure resistant.