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Scoria
Scoria

Icelandite
Icelandite



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Scoria
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Icelandite

Scoria vs Icelandite

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Definition

Definition

Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities
Icelandite belongs to volcanic igneous rocks which is rich in iron and belongs to andesite rock

History

Origin

-
Iceland

Discoverer

Unknown
Ian S. E. Carmichael

Etymology

From late Middle English (denoting slag from molten metal), from Greek skōria refuse, from skōr dung
From its origin place near Cenozoic volcano near the parsonage Þingmúli in East Iceland

Class

Igneous Rocks
Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock

Family

Group

Volcanic
Volcanic

Other Categories

Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock

Texture

Texture

Vesicular
Aphanitic to Porphyritic

Color

Black, Brown, Dark Grey to Black, Red
Bluish - Grey, Grey, Pink, Yellow

Maintenance

More
More

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Glassy and Vesicular
Dull and Soft

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration
Decorative Aggregates, Floor Tiles, Homes, Interior Decoration, Kitchens

Exterior Uses

Garden Decoration, Paving Stone
Office Buildings, Roof Tiles

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

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

Medical Industry

-
-

Antiquity Uses

Artifacts, Monuments, Sculpture
Artifacts, Jewellery, Sculpture, Small Figurines

Other Uses

Commercial Uses

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

Types

Types

Basaltic Scoria and Andesitic Scoria
Intermediate volcanic rock

Features

Available in Lots of Colors and Patterns, Generally rough to touch, Surfaces are often shiny
Generally rough to touch, High silica content, Is one of the oldest rock

Archaeological Significance

Monuments

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-

Famous Monuments

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-

Sculpture

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-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Absent

Formation

Formation

Scoria forms when magma containing huge amount of dissolved gas flows from a volcano during an eruption.
Icelandite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.

Composition

Mineral Content

Apatite, Biotite, Calcite, Feldspar, Hematite, Hornblade, Ilmenite, Magnetite, Olivine, Pyroxene, Quartz, Silica
Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon

Compound Content

Ca, NaCl
Silicon Dioxide

Transformation

Metamorphism

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering

Erosion

Types of Erosion

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

Properties

Physical Properties

Hardness

5-67
1 7
👆🏻

Grain Size

Fine Grained
Very fine-grained

Fracture

Conchoidal
Uneven

Streak

White
White

Porosity

Highly Porous
Less Porous

Luster

Subvitreous to Dull
Vitreous

Compressive Strength

70.00 N/mm2200.00 N/mm2
0.15 450
👆🏻

Cleavage

Perfect
-

Toughness

2.1
1.1

Specific Gravity

-99992.5-2.8
0 8.4
👆🏻

Transparency

Opaque
Opaque

Density

-9999 g/cm32.11-2.36 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K2.39 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

Afghanistan, Indonesia, Japan, Russia
India, Indonesia, Japan, Nepal, South Korea

Africa

Ethiopia, Kenya, Tanzania
Egypt, Ethiopia, Morocco, Namibia, South Africa, Tanzania

Europe

Greece, Hungary, Iceland, Italy, Turkey
Austria, Finland, Germany, Italy, Romania, Turkey, United Kingdom

Others

-
-

Deposits in Western Continents

North America

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

South America

Argentina, Chile, Ecuador, Peru
Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

Deposits in Oceania Continent

Australia

New Zealand, Western Australia
New South Wales, New Zealand, Western Australia

Scoria vs Icelandite 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 Scoria and Icelandite Reserves. Scoria is a dark-colored extrusive igneous rock with abundant round bubble-like cavities. Icelandite belongs to volcanic igneous rocks which is rich in iron and belongs to andesite rock. 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 Scoria vs Icelandite information and Scoria vs Icelandite characteristics in the upcoming sections.

Scoria vs Icelandite 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. Scoria vs Icelandite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Scoria and Properties of Icelandite. Learn more about Scoria vs Icelandite in the next section. The interior uses of Scoria include Decorative aggregates and Interior decoration whereas the interior uses of Icelandite include Decorative aggregates, Floor tiles, Homes, Interior decoration and Kitchens. Due to some exceptional properties of Scoria and Icelandite, they have various applications in construction industry. The uses of Scoria in construction industry include Cement manufacture, Construction aggregate, For road aggregate, In landscaping and drainage works and that of Icelandite include Cobblestones, Construction aggregate, For road aggregate.

More about Scoria and Icelandite

Here you can know more about Scoria and Icelandite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Scoria and Icelandite consists of mineral content and compound content. The mineral content of Scoria includes Apatite, Biotite, Calcite, Feldspar, Hematite, Hornblade, Ilmenite, Magnetite, Olivine, Pyroxene, Quartz, Silica and mineral content of Icelandite includes Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon. You can also check out the list of all Igneous Rocks. When we have to compare Scoria vs Icelandite, the texture, color and appearance plays an important role in determining the type of rock. Scoria is available in black, brown, dark grey to black, red colors whereas, Icelandite is available in bluish - grey, grey, pink, yellow colors. Appearance of Scoria is Glassy and Vesicular and that of Icelandite is Dull and Soft. Properties of rock is another aspect for Scoria vs Icelandite. The hardness of Scoria is 5-6 and that of Icelandite is 7. The types of Scoria are Basaltic Scoria and Andesitic Scoria whereas types of Icelandite are Intermediate volcanic rock. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Scoria and Icelandite is white. The specific heat capacity of Scoria is 0.84 kJ/Kg K and that of Icelandite is 2.39 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Scoria is heat resistant, impact resistant, pressure resistant, wear resistant whereas Icelandite is heat resistant, pressure resistant, scratch resistant, wear resistant.