Eclogite

Metapelite

Eclogite and Metapelite

Eclogite

Metapelite

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Definition

Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature

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

René Just Haüy

Unknown

Etymology

From French, Greek eklogē selection with reference to the selective content of the rock + -ite1

From Pelos or clay in Greek

Class

Metamorphic Rocks

Sub-Class

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

Earthy

Foliated

Color

Black, Brown, Green, Grey, Pink, White

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

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull, Banded and Foilated

Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration

Exterior Uses

Paving Stone, Garden Decoration

As Building Stone, As Facing Stone

Other Architectural Uses

Curbing

Industry

Construction Industry

Cement Manufacture, Construction Aggregate, for Road Aggregate

Medical Industry

In Chemical and Pharmaceutical Industry, Medicines and Cosmetics

Antiquity Uses

Artifacts

Other Uses

Commercial Uses

Creating Artwork, Gemstone

Commemorative Tablets, Creating Artwork

Types

Eclogite

Metamorphic rock

Features

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

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

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

Eclogite forms from high-pressure metamorphism of mafic igneous rocks mainly, basalt or gabbro as it plunges into the mantle in a subduction zone.

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

Amphibole, Coesite, Corundum, Dolomite, Garnet, Kyanite, Lawsonite, Paragonite, Phengite, Pyroxene, Quartz, Rutile, Zoisite

Albite, Chlorite, Quartz

Compound Content

Aluminium Oxide, NaCl, CaO, Carbon Dioxide, Iron(III) Oxide, Magnesium Carbonate, MgO, Sodium Oxide, Potassium, Sodium

Aluminium Oxide, CaO, MgO

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Weathering

✔ ✘

Types of Weathering

Mechanical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Sea Erosion

Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

3.5-45-6

1 7

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Grain Size

Fine Grained

Medium to Fine Coarse Grained

Fracture

Fibrous

Streak

White

Porosity

Less Porous

Highly Porous

Luster

Subvitreous to Dull

Earthy

Compressive Strength

200.00 N/mm²40.00 N/mm²

0.15 450

👆🏻

Cleavage

Perfect

Toughness

Specific Gravity

2.86-2.873.4-3.7

0 8.4

👆🏻

Transparency

Opaque

Density

3.2-3.6 g/cm³0-300 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.75 kJ/Kg K0.72 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant

Heat Resistant, Impact Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Kazakhstan, Kuwait, Russia, South Korea, Thailand, Turkey

Africa

Ethiopia, Morocco, South Africa

Western Africa

Europe

France, Germany, Italy, Norway, Scotland

United Kingdom

Others

Greenland

Deposits in Western Continents

North America

Canada, Costa Rica, Panama, USA

South America

Argentina, Brazil, Colombia, Ecuador

Brazil, Colombia, Ecuador

Deposits in Oceania Continent

Australia

Central Australia, New Zealand, Queensland

Central Australia, Western Australia

All about Eclogite and Metapelite Properties

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