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Obsidian vs Talc carbonate


Talc carbonate vs Obsidian


Definition

Definition
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   
Talc carbonate is nothing but a rock sequence or a mineral composition found in metamorphic ultramafic rocks.   

History
  
  

Origin
Ethiopia   
China, USA, Middle east   

Discoverer
Obsius   
Unknown   

Etymology
From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius   
From medieval Latin, talcum   

Class
Igneous Rocks   
Metamorphic Rocks   

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

Family
  
  

Group
Volcanic   
Not Applicable   

Other Categories
Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture

Texture
Glassy   
Very Soft   

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

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
No   
No   

Wind Resistant
No   
No   

Acid Resistant
No   
No   

Appearance
Shiny   
Soft   

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Interior Decoration   
Decorative Aggregates, Interior Decoration   

Exterior Uses
Garden Decoration   
Garden Decoration   

Other Architectural Uses
Not Yet Used   
Powder   

Industry
  
  

Construction Industry
Arrowheads, Cutting Tool, Knives, Scrapers, Spear Points   
Source of calcium   

Medical Industry
Surgery   
Taken as a Supplement for Calcium or Magnesium   

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

Other Uses
  
  

Commercial Uses
Creating Artwork, Mirror, Used in aquariums   
Manufacturing of baby powder   

Types

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

Features
Blocks negativity, Helps to protect against depression   
Easily splits into thin plates, Generally rough to touch, Host Rock for Lead   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Used   

Famous Monuments
Not Applicable   
Data Not Available   

Sculpture
Not Yet Used   
Used   

Famous Sculptures
Not Applicable   
Data Not Available   

Pictographs
Used   
Used   

Petroglyphs
Used   
Not Used   

Figurines
Not Yet Used   
Used   

Fossils
Absent   
Absent   

Formation

Formation
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.   
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Talc Carbonate is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.   

Composition
  
  

Mineral Content
Not Available   
Carbonate, Chlorite, Magnesium   

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

Transformation
  
  

Metamorphism
Yes   
Yes   

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

Weathering
Yes   
No   

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering   
Not Applicable   

Erosion
Yes   
No   

Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion   
Not Applicable   

Properties

Physical Properties
  
  

Hardness
5-5.5   
1-2   

Grain Size
Not Applicable   
Fine Grained   

Fracture
Conchoidal   
Flat   

Streak
White   
White   

Porosity
Very Less Porous   
Less Porous   

Luster
Vitreous   
Pearly   

Compressive Strength
0.15 N/mm2   
33
250.00 N/mm2   
4

Cleavage
Non-Existent   
Perfect   

Toughness
Not Available   
1   

Specific Gravity
2.6-2.7   
2.86   

Transparency
Translucent   
Translucent   

Density
2.6 g/cm3   
2.8-2.9 g/cm3   

Thermal Properties
  
  

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

Resistance
Heat Resistant, Impact Resistant   
Heat Resistant, Wear Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
Afghanistan, Indonesia, Japan, Russia   
Not Yet Found   

Africa
Kenya   
Ethiopia, Ghana, Western Africa   

Europe
Greece, Hungary, Iceland, Italy, Turkey   
England   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Canada, Mexico, USA   
Canada, USA   

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

Deposits in Oceania Continent
  
  

Australia
New Zealand   
Central Australia, South Australia, Western Australia   

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Obsidian vs Talc carbonate 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 Obsidian and Talc carbonate Reserves. 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. Talc carbonate is nothing but a rock sequence or a mineral composition found in metamorphic ultramafic rocks.. 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 Obsidian vs Talc carbonate information and Obsidian vs Talc carbonate characteristics in the upcoming sections.

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

More about Obsidian and Talc carbonate

Here you can know more about Obsidian and Talc carbonate. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Obsidian and Talc carbonate consists of mineral content and compound content. The mineral content of Obsidian is not available and mineral content of Talc carbonate includes Carbonate, Chlorite, Magnesium. You can also check out the list of all Igneous Rocks. When we have to compare Obsidian vs Talc carbonate, the texture, color and appearance plays an important role in determining the type of rock. Obsidian is available in black, blue, brown, green, orange, red, tan, yellow colors whereas, Talc carbonate is available in colourless, grey, white colors. Appearance of Obsidian is Shiny and that of Talc carbonate is Soft. Properties of rock is another aspect for Obsidian vs Talc carbonate. The hardness of Obsidian is 5-5.5 and that of Talc carbonate is 1-2. The types of Obsidian are Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian whereas types of Talc carbonate are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Obsidian and Talc carbonate is white. The specific heat capacity of Obsidian is 0.92 kJ/Kg K and that of Talc carbonate 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.Obsidian is heat resistant, impact resistant whereas Talc carbonate is heat resistant, wear resistant.

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