Charnockite

Boninite

Charnockite and Boninite

Charnockite

Boninite

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Definition

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

Boninite is a mafic extrusive rock which is high in magnesium and silica content, formed in fore-arc environments, typically during the early stages of subduction

History

Origin

Tamil Nadu, India

Japan

Discoverer

T. H. Holland

Unknown

Etymology

From Job Charnock, an administtrator of East India Company

From its occurrence in the Izu-Bonin arc south of Japan

Class

Igneous Rocks

Sub-Class

Durable Rock, Hard Rock

Family

Group

Plutonic

Volcanic

Other Categories

Coarse Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Granular

Aphanitic to Porphyritic

Color

Black, Grey, Orange, Pink, White

Bluish - Grey, Brown, Green, Grey

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Veined or Pebbled

Dull and Soft

Uses

Architecture

Interior Uses

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

Decorative Aggregates, Homes, Kitchens

Exterior Uses

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

Garden Decoration, Office Buildings

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone

As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts

Other Uses

Commercial Uses

Curling, Gemstone, Laboratory bench tops, Tombstones

An Oil and Gas Reservoir, Cemetery Markers, Creating Artwork, Soil Conditioner, Source of Magnesia (MgO)

Types

Enderbite

Basalt

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, High Mg content, Is one of the oldest rock

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.

Boninite is a type of Igneous rock which is formed through the cooling and solidification of lava or existing rocks.

Composition

Mineral Content

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

Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite

Compound Content

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

Silicon Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Contact Metamorphism, Regional Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Water Erosion, Wind Erosion

Chemical Erosion, Coastal Erosion, Wind Erosion

Properties

Physical Properties

Hardness

6-77

1 7

👆🏻

Grain Size

Coarse Grained

Fine Grained

Fracture

Uneven

Streak

White

Porosity

Very Less Porous

Less Porous

Luster

Vitreous

Compressive Strength

190.00 N/mm²150.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

1.1

Specific Gravity

-99992.5-2.8

0 8.4

👆🏻

Transparency

Opaque

Density

2.6 g/cm³-9999 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, Wear Resistant

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

India

Africa

East Africa, Ethiopia, Madagascar, Morocco, Mozambique

South Africa

Europe

Albania, Romania, Scotland, United Kingdom

England, Finland, United Kingdom

Others

Antarctica, Greenland

Deposits in Western Continents

North America

USA

South America

Brazil, Colombia, Venezuela

Colombia, Uruguay

Deposits in Oceania Continent

Australia

Central Australia, Western Australia

New Zealand, Western Australia

All about Charnockite and Boninite Properties

Know all about Charnockite and Boninite properties here. All properties of rocks are important as they define the type of rock and its application. Charnockite and Boninite belong to Igneous Rocks.Texture of Charnockite is Granular whereas that of Boninite is Aphanitic to Porphyritic. Charnockite appears Veined or Pebbled and Boninite appears Dull and Soft. The luster of Charnockite is while that of Boninite is vitreous. Charnockite is available in black, grey, orange, pink, white colors whereas Boninite is available in bluish - grey, brown, green, grey colors. The commercial uses of Charnockite are curling, gemstone, laboratory bench tops, tombstones and that of Boninite are an oil and gas reservoir, cemetery markers, creating artwork, soil conditioner, source of magnesia (mgo).