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Enderbite and Obsidian


Obsidian and Enderbite


Definition

Definition
Enderbite rock is an igneous rock which belongs to the Charnockite rock series   
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
Enderby Land, Antarctica   
Ethiopia   

Discoverer
Unknown   
Obsius   

Etymology
From its occurrence in Enderby Land, Antarctica   
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
Plutonic   
Volcanic   

Other Categories
Coarse Grained Rock, Opaque Rock   
Opaque Rock   

Texture

Texture
Granular   
Glassy   

Color
Black, Grey, Orange, Pink, White   
Black, Blue, Brown, Green, Orange, Red, Tan, Yellow   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
Yes   
No   

Wind Resistant
Yes   
No   

Acid Resistant
Yes   
No   

Appearance
Veined or Pebbled   
Shiny   

Uses

Architecture
  
  

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

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

Other Architectural Uses
Curbing   
Not Yet Used   

Industry
  
  

Construction Industry
As Dimension Stone   
Arrowheads, Cutting Tool, Knives, Scrapers, Spear Points   

Medical Industry
Not Yet Used   
Surgery   

Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines   
Artifacts, Jewellery   

Other Uses
  
  

Commercial Uses
Curling, Gemstone, Laboratory bench tops, Tombstones   
Creating Artwork, Mirror, Used in aquariums   

Types

Types
Not Available   
Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian   

Features
Available in Lots of Colors and Patterns, It is One of the Oldest, Strongest and Hardest Rock   
Blocks negativity, Helps to protect against depression   

Archaeological Significance
  
  

Monuments
Used   
Not Yet Used   

Famous Monuments
Data Not Available   
Not Applicable   

Sculpture
Used   
Not Yet Used   

Famous Sculptures
Data Not Available   
Not Applicable   

Pictographs
Not Used   
Used   

Petroglyphs
Not Used   
Used   

Figurines
Used   
Not Yet Used   

Fossils
Absent   
Absent   

Formation

Formation
Charnockite is an intrusive igneous rock which is very hard and is formed due to weathering of 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, Biotite, Feldspar, Hornblade, Micas, Muscovite or Illite, Olivine, Plagioclase, Pyroxene, Quartz   
Not Available   

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

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

Weathering
Yes   
Yes   

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

Erosion
Yes   
Yes   

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

Properties

Physical Properties
  
  

Hardness
6-7   
5-5.5   

Grain Size
Coarse Grained   
Not Applicable   

Fracture
Not Available   
Conchoidal   

Streak
White   
White   

Porosity
Very Less Porous   
Very Less Porous   

Luster
Not Available   
Vitreous   

Compressive Strength
Not Available   
0.15 N/mm2   
33

Cleavage
Not Available   
Non-Existent   

Toughness
Not Available   
Not Available   

Specific Gravity
Not Available   
2.6-2.7   

Transparency
Opaque   
Translucent   

Density
2.6 g/cm3   
2.6 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
Not Available   
0.92 kJ/Kg K   
10

Resistance
Heat Resistant, Wear Resistant   
Heat Resistant, Impact Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
India   
Afghanistan, Indonesia, Japan, Russia   

Africa
Not Available   
Kenya   

Europe
Not Available   
Greece, Hungary, Iceland, Italy, Turkey   

Others
Antarctica   
Not Yet Found   

Deposits in Western Continents
  
  

North America
USA   
Canada, Mexico, USA   

South America
Not Available   
Argentina, Chile, Ecuador, Peru   

Deposits in Oceania Continent
  
  

Australia
Not Available   
New Zealand   

Summary >>
<< Reserves

All about Enderbite and Obsidian Properties

Know all about Enderbite and Obsidian properties here. All properties of rocks are important as they define the type of rock and its application. Enderbite and Obsidian belong to Igneous Rocks.Texture of Enderbite is Granular whereas that of Obsidian is Glassy. Enderbite appears Veined or Pebbled and Obsidian appears Shiny. The luster of Enderbite is not available while that of Obsidian is vitreous. Enderbite is available in black, grey, orange, pink, white colors whereas Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors. The commercial uses of Enderbite are curling, gemstone, laboratory bench tops, tombstones and that of Obsidian are creating artwork, mirror, used in aquariums.

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