Adakite

Scoria

Adakite and Scoria

Adakite

Scoria

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1 Definition

1.1 Definition

Adakite is an intermediate to felsic volcanic rock that has geochemical characteristics of magma which is said to be formed by partial melting of altered basalt that is subducted below volcanic arcs

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

1.2 History

1.2.1 Origin

Adak, Aleutian Islands

Unknown

1.2.2 Discoverer

Defant and Drummond

Unknown

1.3 Etymology

From Adak, Aleutian Islands

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

1.4 Class

Igneous Rocks

1.4.1 Sub-Class

Durable Rock, Medium Hardness Rock

1.5 Family

1.5.1 Group

Volcanic

1.6 Other Categories

Fine Grained Rock, Medium Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Porphyritic

Vesicular

2.2 Color

Black, Brown, Light to Dark Grey

Black, Brown, Dark Grey to Black, Red

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

81% Igneous Rocks Rocks have it !

✔ ✘

81% Igneous Rocks Rocks have it !

2.4.2 Scratch Resistant

✔ ✘

86% Igneous Rocks Rocks have it !

✔ ✘

86% Igneous Rocks Rocks have it !

2.4.3 Stain Resistant

✔ ✘

66% Igneous Rocks Rocks have it !

✔ ✘

66% Igneous Rocks Rocks have it !

2.4.4 Wind Resistant

✔ ✘

49% Igneous Rocks Rocks have it !

✔ ✘

49% Igneous Rocks Rocks have it !

2.4.5 Acid Resistant

✔ ✘

48% Igneous Rocks Rocks have it !

✔ ✘

48% Igneous Rocks Rocks have it !

2.5 Appearance

Dull and Soft

Glassy and Vesicular

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Floor Tiles, Homes, Hotels, Kitchens

Decorative Aggregates, Interior Decoration

3.1.2 Exterior Uses

As Building Stone, As Facing Stone, Office Buildings

Garden Decoration, Paving Stone

3.1.3 Other Architectural Uses

Whetstones

Curbing

3.2 Industry

3.2.1 Construction Industry

As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone

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

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Monuments, Sculpture, Small Figurines

Artifacts, Monuments, Sculpture

3.4 Other Uses

3.4.1 Commercial Uses

Commemorative Tablets, Pottery, Used in aquariums

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

4 Types

4.1 Types

Not Available

4.2 Features

Has High structural resistance against erosion and climate, Host rock for Diamond, Very fine grained rock

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

4.3 Archaeological Significance

4.3.1 Monuments

Used

4.3.2 Famous Monuments

Data Not Available

4.3.3 Sculpture

Used

4.3.4 Famous Sculptures

Data Not Available

4.3.5 Pictographs

Used

4.3.6 Petroglyphs

Used

4.3.7 Figurines

Used

4.4 Fossils

Absent

5 Formation

5.1 Formation

Adakite rocks are formed when the hydrous fluids are released from minerals that break down in metamorphosed basalt, and rise into the mantle they initiate partial melting.

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

5.2 Composition

5.2.1 Mineral Content

Olivine, Plagioclase, Pyroxene

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

5.2.2 Compound Content

Aluminium Oxide, MgO, Silicon Dioxide

Ca, NaCl

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

97% Igneous Rocks Rocks have it !

✔ ✘

97% Igneous Rocks Rocks have it !

5.3.2 Types of Metamorphism

Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

5.3.3 Weathering

✔ ✘

99% Igneous Rocks Rocks have it !

✔ ✘

99% Igneous Rocks Rocks have it !

5.3.4 Types of Weathering

Chemical Weathering, Mechanical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

92% Igneous Rocks Rocks have it !

✔ ✘

92% Igneous Rocks Rocks have it !

5.3.6 Types of Erosion

Coastal Erosion, Sea Erosion, Water Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

3-4

5-6

6.1.2 Grain Size

Fine to Medium Grained

Fine Grained

6.1.3 Fracture

Conchoidal

6.1.4 Streak

Bluish Black

White

6.1.5 Porosity

Less Porous

Highly Porous

6.1.6 Luster

Grainy, Pearly and Vitreous

Subvitreous to Dull

6.1.7 Compressive Strength

What Is Flint

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Not Available

Rank: N/A (Overall)▶

Not Available

Rank: N/A (Overall)▶

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What Is Obsidian

⊕

▶

175 (What Is Grani..)

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6.1.8 Cleavage

Not Available

Perfect

6.1.9 Toughness

Not Available

2.1

6.1.10 Specific Gravity

Not Available

6.1.11 Transparency

Opaque

6.1.12 Density

Not Available

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

What Is Banded ..

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▶

▼

Not Available

Rank: N/A (Overall)▶

Not Available

Rank: N/A (Overall)▶

▲

What Is Granulite

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1.09 (What Is Trave..)

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6.2.2 Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

India, Russia

Afghanistan, Indonesia, Japan, Russia

7.1.2 Africa

Ethiopia, Somalia, South Africa

Ethiopia, Kenya, Tanzania

7.1.3 Europe

Iceland

Greece, Hungary, Iceland, Italy, Turkey

7.1.4 Others

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Canada, USA

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

7.2.2 South America

Brazil

Argentina, Chile, Ecuador, Peru

7.3 Deposits in Oceania Continent

7.3.1 Australia

Not Yet Found

New Zealand, Western Australia

All about Adakite and Scoria Properties

Know all about Adakite and Scoria properties here. All properties of rocks are important as they define the type of rock and its application. Adakite and Scoria belong to Igneous Rocks.Texture of Adakite is Porphyritic whereas that of Scoria is Vesicular. Adakite appears Dull and Soft and Scoria appears Glassy and Vesicular. The luster of Adakite is grainy, pearly and vitreous while that of Scoria is subvitreous to dull. Adakite is available in black, brown, light to dark grey colors whereas Scoria is available in black, brown, dark grey to black, red colors. The commercial uses of Adakite are commemorative tablets, pottery, used in aquariums and that of Scoria are as a traction material on snow-covered roads, creating artwork, high-temperature insulation, in gas barbecue grills.