Appinite

Charnockite

Appinite and Charnockite

Appinite

Charnockite

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Definition

Appinite is an igneous rock in which the crystals are so fine grained that individual minerals cannot be easily distinguished

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

History

Origin

Tamil Nadu, India

Discoverer

Unknown

T. H. Holland

Etymology

From the variety of Lamprophyre Greek lampros bright and shining + porphureos purple

From Job Charnock, an administtrator of East India Company

Class

Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

Family

Group

Plutonic

Other Categories

Coarse Grained Rock, Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

Texture

Porphyritic

Granular

Color

Black, Bluish - Grey, Brown, Dark Greenish - Grey, Green, Grey

Black, Grey, Orange, Pink, White

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull, Banded and Foilated

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

Paving Stone, Garden Decoration, Office Buildings

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

Other Architectural Uses

Whetstones

Curbing

Industry

Construction Industry

As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories

As Dimension Stone

Medical Industry

Taken as a Supplement for Calcium or Magnesium

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner

Curling, Gemstone, Laboratory bench tops, Tombstones

Types

Igneous rock

Enderbite

Features

Always found as volcanic pipes over deep continental crust, Host rock for Diamond, Is one of the oldest rock, Surfaces are often shiny

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

Formation

The formation of Appinite takes place deep beneath the Earth’s surface at around 150 to 450 kms, and are erupted rapidly and violently.

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

Composition

Mineral Content

Amphibole, Carbonate, Garnet, Micas, Olivine, Phlogopite, Pyroxene

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

Compound Content

Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Silicon Dioxide, 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

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

Burial Metamorphism, Contact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Chemical Weathering, Mechanical Weathering

Biological Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

5-66-7

1 7

👆🏻

Grain Size

Fine to Coarse Grained

Coarse Grained

Fracture

Conchoidal

Streak

White

Porosity

Very Less Porous

Luster

Subvitreous to Dull

Compressive Strength

185.00 N/mm²190.00 N/mm²

0.15 450

👆🏻

Cleavage

Conchoidal

Toughness

Specific Gravity

2.86-2.87-9999

0 8.4

👆🏻

Transparency

Translucent to Opaque

Opaque

Density

2.95-2.96 g/cm³2.6 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K0.84 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant

Heat Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

Russia

India

Africa

Angola, Botswana, Cameroon, Ethiopia, South Africa

East Africa, Ethiopia, Madagascar, Morocco, Mozambique

Europe

England, Hungary, Iceland, United Kingdom

Albania, Romania, Scotland, United Kingdom

Others

Antarctica, Greenland

Deposits in Western Continents

North America

Canada, Mexico, USA

USA

South America

Argentina, Colombia, Ecuador

Brazil, Colombia, Venezuela

Deposits in Oceania Continent

Australia

New South Wales, New Zealand, Queensland, South Australia, Western Australia

Central Australia, Western Australia

All about Appinite and Charnockite Properties

Know all about Appinite and Charnockite properties here. All properties of rocks are important as they define the type of rock and its application. Appinite and Charnockite belong to Igneous Rocks.Texture of Appinite is Porphyritic whereas that of Charnockite is Granular. Appinite appears Dull, Banded and Foilated and Charnockite appears Veined or Pebbled. The luster of Appinite is subvitreous to dull while that of Charnockite is . Appinite is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors whereas Charnockite is available in black, grey, orange, pink, white colors. The commercial uses of Appinite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner and that of Charnockite are curling, gemstone, laboratory bench tops, tombstones.