Serpentinite

Adakite

Serpentinite and Adakite

Serpentinite

Adakite

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Definition

A hydration and metamorphic transformation of ultramafic rock from the Earth's mantle is called as serpentinization, a group of minerals is formed by serpentinization compose rock 'serpentinite'.

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

History

Origin

USA

Adak, Aleutian Islands

Discoverer

Unknown

Defant and Drummond

Etymology

From English word serpentinization.

From Adak, Aleutian Islands

Class

Metamorphic Rocks

Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Volcanic

Other Categories

Fine Grained Rock, Opaque Rock

Fine Grained Rock, Medium Grained Rock, Opaque Rock

Texture

Earthy

Porphyritic

Color

Black, Brown, Green, Grey, White

Black, Brown, Light to Dark Grey

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Rough and Dull

Dull and Soft

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration

Decorative Aggregates, Floor Tiles, Homes, Hotels, Kitchens

Exterior Uses

As Building Stone, Paving Stone, Garden Decoration, Office Buildings

As Building Stone, As Facing Stone, Office Buildings

Other Architectural Uses

Curbing

Whetstones

Industry

Construction Industry

As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement

As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone

Medical Industry

Antiquity Uses

Artifacts, Jewellery, Monuments, Sculpture

Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Commemorative Tablets, Creating Artwork

Commemorative Tablets, Pottery, Used in aquariums

Types

Jadeitite

Intermediate volcanic rock

Features

Host Rock for Lead

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

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Serpentinite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.

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.

Composition

Mineral Content

Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides

Olivine, Plagioclase, Pyroxene

Compound Content

Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur

Aluminium Oxide, MgO, Silicon Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

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

Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

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

Coastal Erosion, Sea Erosion, Water Erosion

Properties

Physical Properties

Hardness

3-53-4

1 7

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Grain Size

Very fine-grained

Fine to Medium Grained

Fracture

Uneven

Conchoidal

Streak

White, Greenish White or Grey

Bluish Black

Porosity

Less Porous

Luster

Waxy and Dull

Grainy, Pearly and Vitreous

Compressive Strength

310.00 N/mm²200.00 N/mm²

0.15 450

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Cleavage

Toughness

Specific Gravity

2.79-3-9999

0 8.4

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Transparency

Opaque

Density

2.5-3 g/cm³-9999 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.95 kJ/Kg K0.84 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant

Heat Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Saudi Arabia, Singapore, South Korea

India, Russia

Africa

Ethiopia, Western Africa

Ethiopia, Somalia, South Africa

Europe

England, Georgia, Switzerland, United Kingdom

Iceland

Others

Deposits in Western Continents

North America

Canada

Canada, USA

South America

Colombia

Brazil

Deposits in Oceania Continent

Australia

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

All about Serpentinite and Adakite Properties

Know all about Serpentinite and Adakite properties here. All properties of rocks are important as they define the type of rock and its application. Serpentinite belongs to Metamorphic Rocks while Adakite belongs to Igneous Rocks.Texture of Serpentinite is Earthy whereas that of Adakite is Porphyritic. Serpentinite appears Rough and Dull and Adakite appears Dull and Soft. The luster of Serpentinite is waxy and dull while that of Adakite is grainy, pearly and vitreous. Serpentinite is available in black, brown, green, grey, white colors whereas Adakite is available in black, brown, light to dark grey colors. The commercial uses of Serpentinite are commemorative tablets, creating artwork and that of Adakite are commemorative tablets, pottery, used in aquariums.