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Pegmatite vs Boninite


Boninite vs Pegmatite


Definition

Definition
Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals   
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
Unknown   
Japan   

Discoverer
R. J. Hauy   
Unknown   

Etymology
From Greek pegma, pegmat which means- thing joined together + -ite   
From its occurrence in the Izu-Bonin arc south of Japan   

Class
Igneous Rocks   
Igneous Rocks   

Sub-Class
Durable Rock, Hard Rock   
Durable Rock, Hard Rock   

Family
  
  

Group
Plutonic   
Volcanic   

Other Categories
Coarse Grained Rock, Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture

Texture
Pegmatitic   
Aphanitic to Porphyritic   

Color
Black, Brown, Cream, Green, Grey, Pink, Red, Rust, Silver, White, Yellow   
Bluish - Grey, Brown, Colourless, Green, Grey   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
No   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
Yes   

Wind Resistant
No   
Yes   

Acid Resistant
No   
No   

Appearance
Layered, Banded, Veined and Shiny   
Dull and Soft   

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Flooring, Interior Decoration   
Decorative Aggregates, Homes, Kitchens   

Exterior Uses
As Building Stone, As Facing Stone, Paving Stone   
Garden Decoration, Office Buildings   

Other Architectural Uses
Curbing   
Not Yet Used   

Industry
  
  

Construction Industry
As Dimension Stone, Building houses or walls, Construction Aggregate, for Road Aggregate, Landscaping   
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
Not Yet Used   
Not Yet Used   

Antiquity Uses
Artifacts, Sculpture, Small Figurines   
Artifacts   

Other Uses
  
  

Commercial Uses
Creating Artwork, Jewelry, Source of corundum, tourmalines, beryls and topaz   
An Oil and Gas Reservoir, Cemetery Markers, Creating Artwork, Soil Conditioner, Source of Magnesia (MgO)   

Types

Types
Granite Pegmatite, Gabbro Pegmatite and Diorite Pegmatite   
Not Available   

Features
Generally rough to touch, Is one of the oldest rock, Source of corundum, tourmalines, beryls and topaz   
Available in Lots of Colors and Patterns, High Mg content, Is one of the oldest rock   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Not Yet Used   

Famous Monuments
Not Applicable   
Not Applicable   

Sculpture
Used   
Not Yet Used   

Famous Sculptures
Data Not Available   
Not Applicable   

Pictographs
Not Used   
Not Used   

Petroglyphs
Not Used   
Not Used   

Figurines
Used   
Not Yet Used   

Fossils
Absent   
Absent   

Formation

Formation
Pegmatite rock is holocrystalline, intrusive igneous rock which is formed by partial melting and dewatering during the process of metamorphism.   
Boninite is a type of Igneous rock which is formed through the cooling and solidification of lava or existing rocks.   

Composition
  
  

Mineral Content
Apatite, Beryl, Feldspar, Fluorite, Garnet, Lepidolite, Quartz, Silica, Spodumene, Topaz   
Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite   

Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, Magnesium Carbonate, MgO, Phosphorus Pentoxide   
Silicon Dioxide   

Transformation
  
  

Metamorphism
Yes   
Yes   

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

Weathering
Yes   
Yes   

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering   
Biological Weathering   

Erosion
Yes   
Yes   

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
7   
7   

Grain Size
Medium to Coarse Grained   
Fine Grained   

Fracture
Conchoidal   
Uneven   

Streak
White   
White   

Porosity
Less Porous   
Less Porous   

Luster
Grainy, Pearly and Vitreous   
Vitreous   

Compressive Strength
178.54 N/mm2   
12
Not Available   

Cleavage
Perfect   
Not Available   

Toughness
2.1   
1.1   

Specific Gravity
2.6-2.63   
2.5-2.8   

Transparency
Translucent to Opaque   
Opaque   

Density
2.6-2.65 g/cm3   
Not Available   

Thermal Properties
  
  

Resistance
Heat Resistant, Impact Resistant, Pressure Resistant   
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
China, India, Iran, Japan, Nepal, North Korea, Russia, Saudi Arabia, South Korea   
Not Available   

Africa
South Africa   
South Africa   

Europe
Austria, France, Greece, Ireland, Italy, Netherlands, Slovakia, Spain, Turkey, Ukraine   
England, Finland, United Kingdom   

Others
Not Yet Found   
Antarctica, Greenland   

Deposits in Western Continents
  
  

North America
Canada   
USA   

South America
Brazil   
Colombia, Uruguay   

Deposits in Oceania Continent
  
  

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

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Pegmatite 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 Pegmatite and Boninite Reserves. Pegmatite rock is a holocrystalline, intrusive igneous rock which is composed of interlocking phaneritic crystals. 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 Pegmatite vs Boninite information and Pegmatite vs Boninite characteristics in the upcoming sections.

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Pegmatite 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. Pegmatite vs Boninite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Pegmatite and Properties of Boninite. Learn more about Pegmatite vs Boninite in the next section. The interior uses of Pegmatite include Decorative aggregates, Flooring and Interior decoration whereas the interior uses of Boninite include Decorative aggregates, Homes and Kitchens. Due to some exceptional properties of Pegmatite and Boninite, they have various applications in construction industry. The uses of Pegmatite in construction industry include As dimension stone, Building houses or walls, Construction aggregate, For road aggregate, Landscaping 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 Pegmatite and Boninite

Here you can know more about Pegmatite and Boninite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Pegmatite and Boninite consists of mineral content and compound content. The mineral content of Pegmatite includes Apatite, Beryl, Feldspar, Fluorite, Garnet, Lepidolite, Quartz, Silica, Spodumene, Topaz 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 Pegmatite vs Boninite, the texture, color and appearance plays an important role in determining the type of rock. Pegmatite is available in black, brown, cream, green, grey, pink, red, rust, silver, white, yellow colors whereas, Boninite is available in bluish - grey, brown, colourless, green, grey colors. Appearance of Pegmatite is Layered, Banded, Veined and Shiny and that of Boninite is Dull and Soft. Properties of rock is another aspect for Pegmatite vs Boninite. Hardness of Pegmatite and Boninite is 7. The types of Pegmatite are Granite Pegmatite, Gabbro Pegmatite and Diorite Pegmatite whereas types of Boninite are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Pegmatite and Boninite is white. The specific heat capacity of Pegmatite is Not Available and that of Boninite is Not Available. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Pegmatite is heat resistant, impact resistant, pressure resistant whereas Boninite is heat resistant, impact resistant, pressure resistant, wear resistant.

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