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Wehrlite and Pyroxenite


Pyroxenite and Wehrlite


Definition

Definition
Wehrlite is an ultramafic and ultrabasic rock that is a mixture of olivine and clinopyroxene. It is a subdivision of the peridotites  
Pyroxenite is a dark, greenish, granular intrusive igneous rock consisting mainly of pyroxenes and olivine  

History
  
  

Origin
Egypt  
-  

Discoverer
Alois Wehrle  
Unknown  

Etymology
From the name of a professor, Alois Wehrle  
From pyro- fire + Greek xenos stranger as the mineral group was new to igneous rocks  

Class
Igneous Rocks  
Igneous Rocks  

Sub-Class
Durable Rock, Medium Hardness Rock  
Durable Rock, Hard Rock  

Family
  
  

Group
Plutonic  
Plutonic  

Other Categories
Coarse Grained Rock, Opaque Rock  
Coarse Grained Rock, Opaque Rock  

Texture

Texture
Banded  
Clastic, Granular, Phaneritic, Porphyritic  

Color
Dark Greenish - Grey, Green  
Black to Grey, Bluish - Grey, Dark Greenish - Grey, Green, Light Greenish Grey  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
Yes  
Yes  

Scratch Resistant
Yes  
Yes  

Stain Resistant
Yes  
Yes  

Wind Resistant
No  
Yes  

Acid Resistant
No  
Yes  

Appearance
Rough and Banded  
Layered, Banded, Veined and Shiny  

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Interior Decoration  
Countertops, Decorative Aggregates, Interior Decoration, Kitchens  

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

Other Architectural Uses
Curbing  
Curbing  

Industry
  
  

Construction Industry
As Dimension Stone, Cobblestones  
As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate  

Medical Industry
-  
-  

Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines  
Artifacts  

Other Uses
  
  

Commercial Uses
Cemetery Markers, Creating Artwork, Gemstone, Jewelry  
Cemetery Markers, Commemorative Tablets, Laboratory bench tops, Jewelry, Sea Defence, Tombstones  

Types

Types
Ultramafic rock  
Clinopyroxenites, Orthopyroxenites and Websterites  

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

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Absent  

Formation

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.  
Pyroxenites are ultramafic igneous rocks which are made up of minerals of the pyroxene group, such as augite and diopside, hypersthene, bronzite or enstatite.  

Composition
  
  

Mineral Content
Pyroxene  
Amphibole, Augite, Bronzite, Chromite, Diopside, Enstatite, Garnet, Hornblende, Hypersthene, Magnetite, 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, CaO, Chromium(III) Oxide, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Sulfur Trioxide  

Transformation
  
  

Metamorphism
Yes  
Yes  

Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism  
Burial Metamorphism, Impact Metamorphism, Regional Metamorphism  

Weathering
Yes  
Yes  

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering  
Biological Weathering, Chemical Weathering, Mechanical Weathering  

Erosion
Yes  
Yes  

Types of Erosion
Chemical Erosion, Coastal Erosion, Water Erosion  
Chemical Erosion, Coastal Erosion, Water Erosion  

Properties

Physical Properties
  
  

Hardness
5.5-6  
7  

Grain Size
Coarse Grained  
Coarse Grained  

Fracture
Irregular  
Uneven  

Streak
White  
White, Greenish White or Grey  

Porosity
Less Porous  
Less Porous  

Luster
Metallic  
Dull to Vitreous to Submetallic  

Compressive Strength
100.00 N/mm2  
29
150.00 N/mm2  
22

Cleavage
Perfect  
-  

Toughness
2.1  
-  

Specific Gravity
8.4  
3.2-3.5  

Transparency
Opaque  
Opaque  

Density
2.6-3.7 g/cm3  
3.1-3.6 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.63 kJ/Kg K  
26
0.84 kJ/Kg K  
15

Resistance
Heat Resistant, Impact Resistant, Pressure Resistant  
Impact 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  
South Africa  

Europe
Finland, France, Georgia, Germany, Great Britain, Italy, Kazakhstan, Netherlands, Norway, Spain, Switzerland  
Germany, Greece, Italy, Scotland, Turkey  

Others
-  
Greenland  

Deposits in Western Continents
  
  

North America
Canada, USA  
Canada, USA  

South America
Brazil  
Brazil, Colombia, Venezuela  

Deposits in Oceania Continent
  
  

Australia
New Zealand, Western Australia  
New Zealand, Queensland  

Summary >>
<< Reserves

All about Wehrlite and Pyroxenite Properties

Know all about Wehrlite and Pyroxenite properties here. All properties of rocks are important as they define the type of rock and its application. Wehrlite and Pyroxenite belong to Igneous Rocks.Texture of Wehrlite is Banded whereas that of Pyroxenite is Clastic, Granular, Phaneritic, Porphyritic. Wehrlite appears Rough and Banded and Pyroxenite appears Layered, Banded, Veined and Shiny. The luster of Wehrlite is metallic while that of Pyroxenite is dull to vitreous to submetallic. Wehrlite is available in dark greenish - grey, green colors whereas Pyroxenite is available in black to grey, bluish - grey, dark greenish - grey, green, light greenish grey colors. The commercial uses of Wehrlite are cemetery markers, creating artwork, gemstone, jewelry and that of Pyroxenite are cemetery markers, commemorative tablets, laboratory bench tops, jewelry, sea defence, tombstones.

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