Charnockite

Granodiorite

Charnockite and Granodiorite

Charnockite

Granodiorite

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Definition

Charnockite is a variety of granite containing minerals like orthopyroxene, quartz, and feldspar

Granodiorite is a coarse-grained intrusive igneous rock containing quartz and plagioclase, and which has composition in between granite and diorite

History

Origin

Tamil Nadu, India

Discoverer

T. H. Holland

Unknown

Etymology

From Job Charnock, an administtrator of East India Company

From granite + diorite

Class

Igneous Rocks

Sub-Class

Durable Rock, Hard Rock

Durable Rock, Medium Hardness Rock

Family

Group

Plutonic

Other Categories

Coarse Grained Rock, Opaque Rock

Coarse Grained Rock, Medium Grained Rock, Opaque Rock

Texture

Granular

Granular, Phaneritic

Color

Black, Grey, Orange, Pink, White

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Veined or Pebbled

Uses

Architecture

Interior Uses

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

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

Exterior Uses

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

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

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

Curling, Gemstone, Laboratory bench tops, Tombstones

Types

Enderbite

Granodiorite

Features

Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock

Available in Lots of Colors and Patterns

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

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

Granodiorite is an intrusive igneous rock which is very hard, crystalline and is visibly homogeneous in texture and forms by melting of continental rocks.

Composition

Mineral Content

Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz

Amphibole, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Plagioclase, Pyroxene, Quartz

Compound Content

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

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Contact Metamorphism, Regional Metamorphism

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

Weathering

✔ ✘

Types of Weathering

Biological Weathering

Chemical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Water Erosion, Wind Erosion

Chemical Erosion, Glacier Erosion, Wind Erosion

Properties

Physical Properties

Hardness

6-76

1 7

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Grain Size

Coarse Grained

Medium to Coarse Grained

Fracture

Streak

White

Porosity

Very Less Porous

Less Porous

Luster

Grainy, Pearly and Vitreous

Compressive Strength

190.00 N/mm²175.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

Specific Gravity

-99992.6-2.7

0 8.4

👆🏻

Transparency

Opaque

Density

2.6 g/cm³2.6-2.8 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K0.79 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

India

China, India, Iran, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Vietnam

Africa

East Africa, Ethiopia, Madagascar, Morocco, Mozambique

Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa

Europe

Albania, Romania, Scotland, United Kingdom

Austria, Belgium, Finland, France, Germany, Italy, Norway, Sardinia, Spain, Switzerland, The Czech Republic

Others

Deposits in Western Continents

North America

USA

Canada, USA

South America

Brazil, Colombia, Venezuela

Deposits in Oceania Continent

Australia

Central Australia, Western Australia

All about Charnockite and Granodiorite Properties

Know all about Charnockite and Granodiorite properties here. All properties of rocks are important as they define the type of rock and its application. Charnockite and Granodiorite belong to Igneous Rocks.Texture of Charnockite is Granular whereas that of Granodiorite is Granular, Phaneritic. Charnockite appears Veined or Pebbled and Granodiorite appears Veined or Pebbled. The luster of Charnockite is while that of Granodiorite is grainy, pearly and vitreous. Charnockite and Granodiorite are available in black, grey, orange, pink, white colors. The commercial uses of Charnockite and Granodiorite are curling, gemstone, laboratory bench tops, tombstones.