Scoria

Oolite

Scoria and Oolite

Scoria

Oolite

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Definition

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

Oolite is a sedimentary rock formed from ooids, spherical grains which are composed of concentric layers of calcite

History

Origin

Discoverer

Unknown

William Smith

Etymology

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

From oo- + -lite, after German Oolit. A rock consisting of fine grains of carbonate of lime

Class

Igneous Rocks

Sedimentary Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Volcanic

Other Categories

Fine Grained Rock, Opaque Rock

Texture

Vesicular

Clastic or Non-Clastic

Color

Black, Brown, Dark Grey to Black, Red

Black, Blue, Brown, Cream, Green, Grey, Pink, Red, Silver, White, Yellow

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Glassy and Vesicular

Rounded and Rough

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration

Decorative Aggregates, Flooring, Interior Decoration

Exterior Uses

Garden Decoration, Paving Stone

As Building Stone, As Facing Stone, Garden Decoration, Paving Stone

Other Architectural Uses

Curbing

Industry

Construction Industry

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

Cement Manufacture, Cobblestones, Landscaping

Medical Industry

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, Jewelry, Used in aquariums

Types

Basaltic Scoria and Andesitic Scoria

Pisolitic Oolite and Oncolitic Oolite

Features

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

Available in lots of colors, Generally rough to touch, Very fine grained rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Present

Formation

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

Oolites form when layers of calcite are deposited around a sand grain or fossil piece and are rolled around in calm water, which makes them round.

Composition

Mineral Content

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

Calcite, Chert, Clay, Dolomite, Quartz, Sand, Silt

Compound Content

Ca, NaCl

Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, FeO, MgO

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

Chemical Erosion, Coastal Erosion

Properties

Physical Properties

Hardness

5-63-4

1 7

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Grain Size

Fine Grained

Fracture

Conchoidal

Streak

White

Porosity

Highly Porous

Less Porous

Luster

Subvitreous to Dull

Pearly to Shiny

Compressive Strength

70.00 N/mm²40.00 N/mm²

0.15 450

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Cleavage

Perfect

Toughness

2.1

Specific Gravity

-9999-9999

0 8.4

👆🏻

Transparency

Opaque

Density

-9999 g/cm³-9999 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K0.65 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

Afghanistan, Indonesia, Japan, Russia

Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam

Africa

Ethiopia, Kenya, Tanzania

Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe

Europe

Greece, Hungary, Iceland, Italy, Turkey

United Kingdom

Others

Deposits in Western Continents

North America

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

USA

South America

Argentina, Chile, Ecuador, Peru

Colombia

Deposits in Oceania Continent

Australia

New Zealand, Western Australia

Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula

All about Scoria and Oolite Properties

Know all about Scoria and Oolite properties here. All properties of rocks are important as they define the type of rock and its application. Scoria belongs to Igneous Rocks while Oolite belongs to Sedimentary Rocks.Texture of Scoria is Vesicular whereas that of Oolite is Clastic or Non-Clastic. Scoria appears Glassy and Vesicular and Oolite appears Rounded and Rough. The luster of Scoria is subvitreous to dull while that of Oolite is pearly to shiny. Scoria is available in black, brown, dark grey to black, red colors whereas Oolite is available in black, blue, brown, cream, green, grey, pink, red, silver, white, yellow 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 Oolite are creating artwork, jewelry, used in aquariums.