Eclogite

Laterite

Eclogite and Laterite

Eclogite

Laterite

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Definition

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

Laterite rock is a type of Sedimentary rock which is rich in iron and aluminium, formed in hot and wet tropical areas

History

Origin

India

Discoverer

René Just Haüy

Francis Buchanan-Hamilton

Etymology

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

From Latin later brick, tile + -ite1

Class

Metamorphic Rocks

Sedimentary Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Soft Rock

Family

Group

Other Categories

Fine Grained Rock, Opaque Rock

Texture

Earthy

Earthy, Massive, Porphyritic

Color

Black, Brown, Green, Grey, Pink, White

Brown, Buff, Red

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull, Banded and Foilated

Rough and Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration

Decorative Aggregates, Flooring, Interior Decoration

Exterior Uses

Paving Stone, Garden Decoration

As Building Stone, As Facing Stone, Garden Decoration

Other Architectural Uses

Curbing

Industry

Construction Industry

Cobblestones, for Road Aggregate, Landscaping, Roadstone

Medical Industry

In Chemical and Pharmaceutical Industry, Medicines and Cosmetics

Antiquity Uses

Artifacts

Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Creating Artwork, Gemstone

An Oil and Gas Reservoir, Source of bauxite, Used in aquariums

Types

Eclogite

Laterite

Features

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

Is one of the oldest rock, Very fine grained rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Present

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.

Laterite is a type of sedimentary rock which is generally a reddish weathering product of basalt.

Composition

Mineral Content

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

Aluminum Oxides, Biotite, Hematite, Hornblade, Iron Oxides, Manganese Oxides, Micas, Muscovite or Illite, Plagioclase, Pyroxene

Compound Content

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

Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Weathering

✔ ✘

Types of Weathering

Mechanical Weathering

Biological Weathering, Chemical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Sea Erosion

Chemical Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

3.5-42

1 7

👆🏻

Grain Size

Fine Grained

Fracture

Conchoidal

Streak

White

Porosity

Less Porous

Highly Porous

Luster

Subvitreous to Dull

Dull

Compressive Strength

200.00 N/mm²5.00 N/mm²

0.15 450

👆🏻

Cleavage

Perfect

Toughness

Specific Gravity

2.86-2.87-9999

0 8.4

👆🏻

Transparency

Opaque

Density

3.2-3.6 g/cm³-9999 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.75 kJ/Kg K0.92 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant

Heat Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

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

India

Africa

Ethiopia, Morocco, South Africa

East Africa, Western Africa

Europe

France, Germany, Italy, Norway, Scotland

England, Romania, Scotland

Others

Greenland

Deposits in Western Continents

North America

Canada, Costa Rica, Panama, USA

Canada, USA

South America

Argentina, Brazil, Colombia, Ecuador

Deposits in Oceania Continent

Australia

Central Australia, New Zealand, Queensland

Central Australia, Western Australia

All about Eclogite and Laterite Properties

Know all about Eclogite and Laterite properties here. All properties of rocks are important as they define the type of rock and its application. Eclogite belongs to Metamorphic Rocks while Laterite belongs to Sedimentary Rocks.Texture of Eclogite is Earthy whereas that of Laterite is Earthy, Massive, Porphyritic. Eclogite appears Dull, Banded and Foilated and Laterite appears Rough and Banded. The luster of Eclogite is subvitreous to dull while that of Laterite is dull. Eclogite is available in black, brown, green, grey, pink, white colors whereas Laterite is available in brown, buff, red colors. The commercial uses of Eclogite are creating artwork, gemstone and that of Laterite are an oil and gas reservoir, source of bauxite, used in aquariums.