Kimberlite

Boninite

Kimberlite vs Boninite

Kimberlite

Boninite

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Definition

Kimberlite is a rare, blue-tinged, coarse-grained intrusive igneous rock, which sometimes contains diamonds and is mostly found in South Africa and Siberia.

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

Kimberley, South Africa

Japan

Discoverer

John W. Judd

Unknown

Etymology

From Kimberley +‎ -ite, from the name of the South African town of Kimberley where the rock was first found.

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

Class

Igneous Rocks

Sub-Class

Durable Rock, Hard Rock

Family

Group

Volcanic

Other Categories

Coarse Grained Rock, Fine Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Porphyritic

Aphanitic to Porphyritic

Color

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

Bluish - Grey, Brown, Green, Grey

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull and Banded

Dull and Soft

Uses

Architecture

Interior Uses

Countertops, Decorative Aggregates, Homes, Interior Decoration

Decorative Aggregates, Homes, Kitchens

Exterior Uses

As Building Stone, Paving Stone, Garden Decoration

Garden Decoration, Office Buildings

Other Architectural Uses

Curbing

Industry

Construction Industry

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

Taken as a Supplement for Calcium or Magnesium

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts

Other Uses

Commercial Uses

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

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

Types

Basaltic Kimberlites and Micaceous Kimberlites

Basalt

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, High Mg content, Is one of the oldest rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

Kimberlite is an igneous rock and is the main source of diamonds. Its formation takes place deep beneath the Earth’s surface between 150 to 450 kilometres, and are erupted rapidly and violently.

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

Composition

Mineral Content

Garnet, Olivine, Phlogopite, Pyroxene

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

Compound Content

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

Silicon Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

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

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Biological Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion

Chemical Erosion, Coastal Erosion, Wind Erosion

Properties

Physical Properties

Hardness

6-77

1 7

👆🏻

Grain Size

Fine to Coarse Grained

Fine Grained

Fracture

Conchoidal

Uneven

Streak

White

Porosity

Very Less Porous

Less Porous

Luster

Subvitreous to Dull

Vitreous

Compressive Strength

260.00 N/mm²150.00 N/mm²

0.15 450

👆🏻

Cleavage

Conchoidal

Toughness

1.1

Specific Gravity

2.86-2.872.5-2.8

0 8.4

👆🏻

Transparency

Translucent to Opaque

Opaque

Density

2.95-2.96 g/cm³-9999 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K0.84 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

Russia

Africa

Angola, Botswana, Cameroon, Ethiopia, South Africa

South Africa

Europe

England, Hungary, Iceland, United Kingdom

England, Finland, United Kingdom

Others

Antarctica

Antarctica, Greenland

Deposits in Western Continents

North America

Canada, USA

USA

South America

Argentina, Colombia, Ecuador

Colombia, Uruguay

Deposits in Oceania Continent

Australia

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

New Zealand, Western Australia

Kimberlite vs Boninite Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Kimberlite and Boninite Reserves. Kimberlite is a rare, blue-tinged, coarse-grained intrusive igneous rock, which sometimes contains diamonds and is mostly found in South Africa and Siberia.. 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. These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Kimberlite vs Boninite information and Kimberlite vs Boninite characteristics in the upcoming sections.

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Kimberlite vs Boninite Characteristics

Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Kimberlite vs Boninite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Kimberlite and Properties of Boninite. Learn more about Kimberlite vs Boninite in the next section. The interior uses of Kimberlite include Countertops, Decorative aggregates, Homes and Interior decoration whereas the interior uses of Boninite include Decorative aggregates, Homes and Kitchens. Due to some exceptional properties of Kimberlite and Boninite, they have various applications in construction industry. The uses of Kimberlite in construction industry include 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 and that of Boninite include 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.

More about Kimberlite and Boninite

Here you can know more about Kimberlite and Boninite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Kimberlite and Boninite consists of mineral content and compound content. The mineral content of Kimberlite includes Garnet, Olivine, Phlogopite, Pyroxene and mineral content of Boninite includes Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite. You can also check out the list of all Igneous Rocks. When we have to compare Kimberlite vs Boninite, the texture, color and appearance plays an important role in determining the type of rock. Kimberlite is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors whereas, Boninite is available in bluish - grey, brown, green, grey colors. Appearance of Kimberlite is Dull and Banded and that of Boninite is Dull and Soft. Properties of rock is another aspect for Kimberlite vs Boninite. The hardness of Kimberlite is 6-7 and that of Boninite is 7. The types of Kimberlite are Basaltic Kimberlites and Micaceous Kimberlites whereas types of Boninite are Basalt. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Kimberlite and Boninite is white. The specific heat capacity of Kimberlite is 0.92 kJ/Kg K and that of Boninite is 0.84 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Kimberlite is heat resistant, impact resistant whereas Boninite is heat resistant, impact resistant, pressure resistant, wear resistant.