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Harzburgite
Harzburgite

Charnockite
Charnockite



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Harzburgite
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Charnockite

Harzburgite and Charnockite

Definition

Definition

Harzburgite is a plutonic rock of the peridotite group consisting largely of orthopyroxene and olivine
Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar

History

Origin

Germany
Tamil Nadu, India

Discoverer

Unknown
T. H. Holland

Etymology

From the name of a town in Harzburg, Germany
From Job Charnock, an administtrator of East India Company

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

Phaneritic
Granular

Color

Dark Greenish - Grey
Black, Grey, Orange, Pink, White

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Rough and Shiny
Veined or Pebbled

Uses

Architecture

Interior Uses

Decorative Aggregates, Homes, Interior Decoration
Bathrooms, Countertops, Decorative Aggregates, Entryways, Floor Tiles, Homes, Hotels, Kitchens, Stair Treads

Exterior Uses

As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
As Building Stone, As Facing Stone, Bridges, Paving Stone, Garden Decoration, Office Buildings, Resorts

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

As Dimension Stone, Cobblestones
As Dimension Stone

Medical Industry

-
-

Antiquity Uses

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

Other Uses

Commercial Uses

Creating Artwork, Gemstone, Jewelry, Source of Chromite, Platinum, Nickel and Garnet, Source of Diamonds
Curling, Gemstone, Laboratory bench tops, Tombstones

Types

Types

Ultramafic rock
Enderbite

Features

Constitutes upper part of the Earth's mantle, Generally rough to touch, Is one of the oldest rock
Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Absent

Formation

Formation

Harzburgite 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.
Charnockite is an intrusive igneous rock which is very hard and is formed due to weathering of existing rocks.

Composition

Mineral Content

Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene
Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz

Compound Content

Ca, Fe, Mg, Potassium, Silicon Dioxide, Sodium, Titanium Dioxide
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

Transformation

Metamorphism

Types of Metamorphism

Impact Metamorphism
Burial Metamorphism, Contact Metamorphism, Regional Metamorphism

Weathering

Types of Weathering

Chemical Weathering, Mechanical Weathering
Biological Weathering

Erosion

Types of Erosion

Chemical Erosion, Sea Erosion
Chemical Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

5.5-66-7
1 7
👆🏻

Grain Size

Coarse Grained
Coarse Grained

Fracture

Irregular
-

Streak

White
White

Porosity

Less Porous
Very Less Porous

Luster

Shiny
-

Compressive Strength

150.00 N/mm2190.00 N/mm2
0.15 450
👆🏻

Cleavage

-
-

Toughness

2.1
-

Specific Gravity

3-3.01-9999
0 8.4
👆🏻

Transparency

Translucent to Opaque
Opaque

Density

3.1-3.4 g/cm32.6 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

1.25 kJ/Kg K0.84 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

Japan, Oman
India

Africa

South Africa
East Africa, Ethiopia, Madagascar, Morocco, Mozambique

Europe

France, Germany, Italy
Albania, Romania, Scotland, United Kingdom

Others

Hawaii Islands, Mid-Atlantic Ridge
-

Deposits in Western Continents

North America

Canada, USA
USA

South America

-
Brazil, Colombia, Venezuela

Deposits in Oceania Continent

Australia

-
Central Australia, Western Australia

All about Harzburgite and Charnockite Properties

Know all about Harzburgite and Charnockite properties here. All properties of rocks are important as they define the type of rock and its application. Harzburgite and Charnockite belong to Igneous Rocks.Texture of Harzburgite is Phaneritic whereas that of Charnockite is Granular. Harzburgite appears Rough and Shiny and Charnockite appears Veined or Pebbled. The luster of Harzburgite is shiny while that of Charnockite is . Harzburgite is available in dark greenish - grey colors whereas Charnockite is available in black, grey, orange, pink, white colors. The commercial uses of Harzburgite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds and that of Charnockite are curling, gemstone, laboratory bench tops, tombstones.