Scoria

Eclogite

Scoria and Eclogite

Scoria

Eclogite

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Definition

Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities

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

History

Origin

Discoverer

Unknown

René Just Haüy

Etymology

From late Middle English (denoting slag from molten metal), from Greek skōria refuse, from skōr dung

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

Class

Igneous Rocks

Metamorphic Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Volcanic

Other Categories

Fine Grained Rock, Opaque Rock

Texture

Vesicular

Earthy

Color

Black, Brown, Dark Grey to Black, Red

Black, Brown, Green, Grey, Pink, White

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Glassy and Vesicular

Dull, Banded and Foilated

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration

Exterior Uses

Garden Decoration, Paving Stone

Paving Stone, Garden Decoration

Other Architectural Uses

Curbing

Industry

Construction Industry

Cement Manufacture, Construction Aggregate, for Road Aggregate, In landscaping and drainage works

Medical Industry

In Chemical and Pharmaceutical Industry, Medicines and Cosmetics

Antiquity Uses

Artifacts, Monuments, Sculpture

Artifacts

Other Uses

Commercial Uses

As a traction material on snow-covered roads, Creating Artwork, High-temperature insulation, In gas barbecue grills

Creating Artwork, Gemstone

Types

Basaltic Scoria and Andesitic Scoria

Eclogite

Features

Available in Lots of Colors and Patterns, Generally rough to touch, Surfaces are often shiny

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

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

Scoria forms when magma containing huge amount of dissolved gas flows from a volcano during an eruption.

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

Composition

Mineral Content

Apatite, Biotite, Calcite, Feldspar, Hematite, Hornblade, Ilmenite, Magnetite, Olivine, Pyroxene, Quartz, Silica

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

Compound Content

Ca, NaCl

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

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

Chemical Erosion, Sea Erosion

Properties

Physical Properties

Hardness

5-63.5-4

1 7

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Grain Size

Fine Grained

Fracture

Conchoidal

Streak

White

Porosity

Highly Porous

Less Porous

Luster

Subvitreous to Dull

Compressive Strength

70.00 N/mm²200.00 N/mm²

0.15 450

👆🏻

Cleavage

Perfect

Toughness

2.1

Specific Gravity

-99992.86-2.87

0 8.4

👆🏻

Transparency

Opaque

Density

-9999 g/cm³3.2-3.6 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K0.75 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Heat Resistant

Reserves

Deposits in Eastern Continents

Asia

Afghanistan, Indonesia, Japan, Russia

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

Africa

Ethiopia, Kenya, Tanzania

Ethiopia, Morocco, South Africa

Europe

Greece, Hungary, Iceland, Italy, Turkey

France, Germany, Italy, Norway, Scotland

Others

Greenland

Deposits in Western Continents

North America

Bahamas, Barbados, Canada, Costa Rica, Cuba, Jamaica, Mexico, USA

Canada, Costa Rica, Panama, USA

South America

Argentina, Chile, Ecuador, Peru

Argentina, Brazil, Colombia, Ecuador

Deposits in Oceania Continent

Australia

New Zealand, Western Australia

Central Australia, New Zealand, Queensland

All about Scoria and Eclogite Properties

Know all about Scoria and Eclogite properties here. All properties of rocks are important as they define the type of rock and its application. Scoria belongs to Igneous Rocks while Eclogite belongs to Metamorphic Rocks.Texture of Scoria is Vesicular whereas that of Eclogite is Earthy. Scoria appears Glassy and Vesicular and Eclogite appears Dull, Banded and Foilated. The luster of Scoria and Eclogite is subvitreous to dull. Scoria is available in black, brown, dark grey to black, red colors whereas Eclogite is available in black, brown, green, grey, pink, white colors. The commercial uses of Scoria are as a traction material on snow-covered roads, creating artwork, high-temperature insulation, in gas barbecue grills and that of Eclogite are creating artwork, gemstone.