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Obsidian vs Diamictite


Diamictite 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   
Diamictite is a sedimentary rock that consists of non-sorted to poorly sorted terrigenous sediment containing particles that range in size from clay to boulders, suspended in a matrix of mudstone or sandstone   

History
  
  

Origin
Ethiopia   
Southern Mongolia   

Discoverer
Obsius   
Unknown   

Etymology
From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius   
From Greek dia through and meiktós or mixed   

Class
Igneous Rocks   
Sedimentary Rocks   

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

Family
  
  

Group
Volcanic   
Not Applicable   

Other Categories
Opaque Rock   
Coarse Grained Rock, Opaque Rock   

Texture

Texture
Glassy   
Clastic   

Color
Black, Blue, Brown, Green, Orange, Red, Tan, Yellow   
Brown, Buff   

Maintenance
Less   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
No   

Scratch Resistant
Yes   
No   

Stain Resistant
No   
No   

Wind Resistant
No   
No   

Acid Resistant
No   
No   

Appearance
Shiny   
Banded   

Uses

Architecture
  
  

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

Exterior Uses
Garden Decoration   
As Building Stone, Paving Stone   

Other Architectural Uses
Not Yet Used   
Curbing   

Industry
  
  

Construction Industry
Arrowheads, Cutting Tool, Knives, Scrapers, Spear Points   
As Dimension Stone, Construction Aggregate, for Road Aggregate, Landscaping, Roadstone   

Medical Industry
Surgery   
Not Yet Used   

Antiquity Uses
Artifacts, Jewellery   
Artifacts   

Other Uses
  
  

Commercial Uses
Creating Artwork, Mirror, Used in aquariums   
Commemorative Tablets, Creating Artwork, Production of Lime   

Types

Types
Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian   
Bedded Diamictite and Laminated Diamictite   

Features
Blocks negativity, Helps to protect against depression   
Host Rock for Lead, Is one of the oldest rock   

Archaeological Significance
  
  

Monuments
Not Yet Used   
Not Yet Used   

Famous Monuments
Not Applicable   
Not Applicable   

Sculpture
Not Yet Used   
Not Yet Used   

Famous Sculptures
Not Applicable   
Not Applicable   

Pictographs
Used   
Used   

Petroglyphs
Used   
Used   

Figurines
Not Yet Used   
Not Yet Used   

Fossils
Absent   
Present   

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.   
Diamictite is unevenly sorted terrigenous, non-calcareous sedimentary rock which forms due to weathering of mudstone and sandstone.   

Composition
  
  

Mineral Content
Not Available   
Calcite, Clay, Feldspar, Micas, Quartz   

Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide   
Not Available   

Transformation
  
  

Metamorphism
Yes   
No   

Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism   
Not Applicable   

Weathering
Yes   
Yes   

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

Erosion
Yes   
Yes   

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

Properties

Physical Properties
  
  

Hardness
5-5.5   
2-3   

Grain Size
Not Applicable   
Coarse Grained   

Fracture
Conchoidal   
Conchoidal to Uneven   

Streak
White   
Light to dark brown   

Porosity
Very Less Porous   
Highly Porous   

Luster
Vitreous   
Grainy, Pearly and Vitreous   

Compressive Strength
0.15 N/mm2   
33
Not Available   

Cleavage
Non-Existent   
Not Available   

Toughness
Not Available   
Not Available   

Specific Gravity
2.6-2.7   
4.3-5.0   

Transparency
Translucent   
Opaque   

Density
2.6 g/cm3   
2.2-2.35 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.92 kJ/Kg K   
10
0.75 kJ/Kg K   
18

Resistance
Heat Resistant, Impact Resistant   
Heat Resistant, Impact Resistant   

Reserves

Deposits in Eastern Continents
  
  

Asia
Afghanistan, Indonesia, Japan, Russia   
China, India, Kazakhstan, Mongolia, Russia   

Africa
Kenya   
Namibia, Nigeria, South Africa   

Europe
Greece, Hungary, Iceland, Italy, Turkey   
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom   

Others
Not Yet Found   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Canada, Mexico, USA   
Canada, USA   

South America
Argentina, Chile, Ecuador, Peru   
Brazil, Venezuela   

Deposits in Oceania Continent
  
  

Australia
New Zealand   
New South Wales, New Zealand   

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Obsidian vs Diamictite 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 Diamictite 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. Diamictite is a sedimentary rock that consists of non-sorted to poorly sorted terrigenous sediment containing particles that range in size from clay to boulders, suspended in a matrix of mudstone or sandstone. 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 Diamictite information and Obsidian vs Diamictite characteristics in the upcoming sections.

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Obsidian vs Diamictite 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 Diamictite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Obsidian and Properties of Diamictite. Learn more about Obsidian vs Diamictite in the next section. The interior uses of Obsidian include Decorative aggregates and Interior decoration whereas the interior uses of Diamictite include Decorative aggregates and Interior decoration. Due to some exceptional properties of Obsidian and Diamictite, 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 Diamictite include As dimension stone, Construction aggregate, For road aggregate, Landscaping, Roadstone.

More about Obsidian and Diamictite

Here you can know more about Obsidian and Diamictite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Obsidian and Diamictite consists of mineral content and compound content. The mineral content of Obsidian is not available and mineral content of Diamictite includes Calcite, Clay, Feldspar, Micas, Quartz. You can also check out the list of all Igneous Rocks. When we have to compare Obsidian vs Diamictite, 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, Diamictite is available in brown, buff colors. Appearance of Obsidian is Shiny and that of Diamictite is Banded. Properties of rock is another aspect for Obsidian vs Diamictite. The hardness of Obsidian is 5-5.5 and that of Diamictite is 2-3. The types of Obsidian are Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian whereas types of Diamictite are Bedded Diamictite and Laminated Diamictite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Obsidian is white while that of Diamictite is light to dark brown. The specific heat capacity of Obsidian is 0.92 kJ/Kg K and that of Diamictite is 0.75 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 Diamictite is heat resistant, impact resistant.

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