Wehrlite

Adakite

Wehrlite and Adakite

Wehrlite

Adakite

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Definition

Wehrlite is an ultramafic and ultrabasic rock that is a mixture of olivine and clinopyroxene. It is a subdivision of the peridotites

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

Egypt

Adak, Aleutian Islands

Discoverer

Alois Wehrle

Defant and Drummond

Etymology

From the name of a professor, Alois Wehrle

From Adak, Aleutian Islands

Class

Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Plutonic

Volcanic

Other Categories

Coarse Grained Rock, Opaque Rock

Fine Grained Rock, Medium Grained Rock, Opaque Rock

Texture

Banded

Porphyritic

Color

Dark Greenish - Grey, Green

Black, Brown, Light to Dark Grey

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Rough and Banded

Dull and Soft

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration

Decorative Aggregates, Floor Tiles, Homes, Hotels, Kitchens

Exterior Uses

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

As Building Stone, As Facing Stone, Office Buildings

Other Architectural Uses

Curbing

Whetstones

Industry

Construction Industry

As Dimension Stone, Cobblestones

As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Cemetery Markers, Creating Artwork, Gemstone, Jewelry

Commemorative Tablets, Pottery, Used in aquariums

Types

Ultramafic rock

Intermediate volcanic rock

Features

Constitutes upper part of the Earth's mantle, Generally rough to touch, Is one of the oldest rock

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

Wehrlite 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.

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

Pyroxene

Olivine, Plagioclase, Pyroxene

Compound Content

Aluminium Oxide, CaO, Carbon Dioxide, Iron(III) Oxide, FeO, Potassium Oxide, MgO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

Aluminium Oxide, MgO, Silicon Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

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

Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Water Erosion

Coastal Erosion, Sea Erosion, Water Erosion

Properties

Physical Properties

Hardness

5.5-63-4

1 7

👆🏻

Grain Size

Coarse Grained

Fine to Medium Grained

Fracture

Irregular

Conchoidal

Streak

White

Bluish Black

Porosity

Less Porous

Luster

Metallic

Grainy, Pearly and Vitreous

Compressive Strength

100.00 N/mm²200.00 N/mm²

0.15 450

👆🏻

Cleavage

Perfect

Toughness

2.1

Specific Gravity

8.4-9999

0 8.4

👆🏻

Transparency

Opaque

Density

2.6-3.7 g/cm³-9999 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.63 kJ/Kg K0.84 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant

Heat Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India, Indonesia, Kazakhstan, Russia, South Korea, Thailand, Turkey

India, Russia

Africa

Morocco, South Africa

Ethiopia, Somalia, South Africa

Europe

Finland, France, Georgia, Germany, Great Britain, Italy, Kazakhstan, Netherlands, Norway, Spain, Switzerland

Iceland

Others

Deposits in Western Continents

North America

Canada, USA

South America

Brazil

Deposits in Oceania Continent

Australia

New Zealand, Western Australia

All about Wehrlite and Adakite Properties

Know all about Wehrlite and Adakite properties here. All properties of rocks are important as they define the type of rock and its application. Wehrlite and Adakite belong to Igneous Rocks.Texture of Wehrlite is Banded whereas that of Adakite is Porphyritic. Wehrlite appears Rough and Banded and Adakite appears Dull and Soft. The luster of Wehrlite is metallic while that of Adakite is grainy, pearly and vitreous. Wehrlite is available in dark greenish - grey, green colors whereas Adakite is available in black, brown, light to dark grey colors. The commercial uses of Wehrlite are cemetery markers, creating artwork, gemstone, jewelry and that of Adakite are commemorative tablets, pottery, used in aquariums.