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Boninite vs Obsidian


Obsidian vs Boninite


Definition

Definition
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  
Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth  

History
  
  

Origin
Japan  
Ethiopia  

Discoverer
Unknown  
Obsius  

Etymology
From its occurrence in the Izu-Bonin arc south of Japan  
From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius  

Class
Igneous Rocks  
Igneous Rocks  

Sub-Class
Durable Rock, Hard Rock  
Durable Rock, Medium Hardness Rock  

Family
  
  

Group
Volcanic  
Volcanic  

Other Categories
Fine Grained Rock, Opaque Rock  
Opaque Rock  

Texture

Texture
Aphanitic to Porphyritic  
Glassy  

Color
Bluish - Grey, Brown, Green, Grey  
Black, Blue, Brown, Green, Orange, Red, Tan, Yellow  

Maintenance
Less  
Less  

Durability
Durable  
Durable  

Water Resistant
No  
Yes  

Scratch Resistant
Yes  
Yes  

Stain Resistant
Yes  
No  

Wind Resistant
Yes  
No  

Acid Resistant
No  
No  

Appearance
Dull and Soft  
Shiny  

Uses

Architecture
  
  

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

Exterior Uses
Garden Decoration, Office Buildings  
Garden Decoration  

Other Architectural Uses
-  
-  

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  
Arrowheads, Cutting Tool, Knives, Scrapers, Spear Points  

Medical Industry
-  
Surgery  

Antiquity Uses
Artifacts  
Artifacts, Jewellery  

Other Uses
  
  

Commercial Uses
An Oil and Gas Reservoir, Cemetery Markers, Creating Artwork, Soil Conditioner, Source of Magnesia (MgO)  
Creating Artwork, Mirror, Used in aquariums  

Types

Types
Basalt  
Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian  

Features
Available in Lots of Colors and Patterns, High Mg content, Is one of the oldest rock  
Blocks negativity, Helps to protect against depression  

Archaeological Significance
  
  

Monuments
-  
-  

Famous Monuments
-  
-  

Sculpture
-  
-  

Famous Sculptures
-  
-  

Pictographs
-  
-  

Petroglyphs
-  
-  

Figurines
-  
-  

Fossils
Absent  
Absent  

Formation

Formation
Boninite is a type of Igneous rock which is formed through the cooling and solidification of lava or existing rocks.  
When the lava is released from volcano, it undergoes a very rapid cooling which freezes the mechanisms of crystallization. The result is a volcanic glass with a uniform smooth texture.  

Composition
  
  

Mineral Content
Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite  
-  

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

Transformation
  
  

Metamorphism
Yes  
Yes  

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

Weathering
Yes  
Yes  

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

Erosion
Yes  
Yes  

Types of Erosion
Chemical Erosion, Coastal Erosion, Wind Erosion  
Chemical Erosion, Coastal Erosion, Glacier Erosion  

Properties

Physical Properties
  
  

Hardness
7  
5-5.5  

Grain Size
Fine Grained  
-  

Fracture
Uneven  
Conchoidal  

Streak
White  
White  

Porosity
Less Porous  
Very Less Porous  

Luster
Vitreous  
Vitreous  

Compressive Strength
150.00 N/mm2  
22
0.15 N/mm2  
99+

Cleavage
-  
-  

Toughness
1.1  
-  

Specific Gravity
2.5-2.8  
2.6-2.7  

Transparency
Opaque  
Translucent  

Density
-9999 g/cm3  
2.6 g/cm3  

Thermal Properties
  
  

Specific Heat Capacity
0.84 kJ/Kg K  
15
0.92 kJ/Kg K  
10

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

Reserves

Deposits in Eastern Continents
  
  

Asia
-  
Afghanistan, Indonesia, Japan, Russia  

Africa
South Africa  
Kenya  

Europe
England, Finland, United Kingdom  
Greece, Hungary, Iceland, Italy, Turkey  

Others
Antarctica, Greenland  
-  

Deposits in Western Continents
  
  

North America
USA  
Canada, Mexico, USA  

South America
Colombia, Uruguay  
Argentina, Chile, Ecuador, Peru  

Deposits in Oceania Continent
  
  

Australia
New Zealand, Western Australia  
New Zealand  

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Boninite vs Obsidian 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 Boninite and Obsidian Reserves. 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. Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is produced when felsic lava extruded from a volcano cools rapidly with minimum crystal growth. 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 Boninite vs Obsidian information and Boninite vs Obsidian characteristics in the upcoming sections.

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Boninite vs Obsidian 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. Boninite vs Obsidian characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Boninite and Properties of Obsidian. Learn more about Boninite vs Obsidian in the next section. The interior uses of Boninite include Decorative aggregates, Homes and Kitchens whereas the interior uses of Obsidian include Decorative aggregates and Interior decoration. Due to some exceptional properties of Boninite and Obsidian, they have various applications in construction industry. The uses of Boninite 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 Obsidian include Arrowheads, Cutting tool, Knives, Scrapers, Spear points.

More about Boninite and Obsidian

Here you can know more about Boninite and Obsidian. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Boninite and Obsidian consists of mineral content and compound content. The mineral content of Boninite includes Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite and mineral content of Obsidian includes . You can also check out the list of all Igneous Rocks. When we have to compare Boninite vs Obsidian, the texture, color and appearance plays an important role in determining the type of rock. Boninite is available in bluish - grey, brown, green, grey colors whereas, Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors. Appearance of Boninite is Dull and Soft and that of Obsidian is Shiny. Properties of rock is another aspect for Boninite vs Obsidian. The hardness of Boninite is 7 and that of Obsidian is 5-5.5. The types of Boninite are Basalt whereas types of Obsidian are Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Boninite and Obsidian is white. The specific heat capacity of Boninite is 0.84 kJ/Kg K and that of Obsidian is 0.92 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Boninite is heat resistant, impact resistant, pressure resistant, wear resistant whereas Obsidian is heat resistant, impact resistant.

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