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Obsidian
Obsidian

Hyaloclastite 
Hyaloclastite 



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Obsidian vs Hyaloclastite 

1 Definition
1.1 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
Hyaloclastite is an aggregate of fine, glassy debris formed by the sudden contact of hot, coherent magma and cold water or water-saturated sediment
1.2 History
1.2.1 Origin
Ethiopia
Unknown
1.2.2 Discoverer
Obsius
Unknown
1.3 Etymology
From Latin obsidianus, misprint of Obsianus (lapis) (stone) of Obsius
From hyalo +‎ -ite
1.4 Class
Igneous Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
1.5 Family
1.5.1 Group
Volcanic
Volcanic
1.6 Other Categories
Opaque Rock
Fine Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Glassy
Pyroclastic
2.2 Color
Black, Blue, Brown, Green, Orange, Red, Tan, Yellow
Brown, Grey, Yellow
2.3 Maintenance
Less
More
2.4 Durability
Durable
Durable
2.4.1 Water Resistant
81% Igneous Rocks Rocks have it !
81% Igneous Rocks Rocks have it !
2.4.2 Scratch Resistant
86% Igneous Rocks Rocks have it !
86% Igneous Rocks Rocks have it !
2.4.3 Stain Resistant
66% Igneous Rocks Rocks have it !
66% Igneous Rocks Rocks have it !
2.4.4 Wind Resistant
49% Igneous Rocks Rocks have it !
49% Igneous Rocks Rocks have it !
2.4.5 Acid Resistant
48% Igneous Rocks Rocks have it !
48% Igneous Rocks Rocks have it !
2.5 Appearance
Shiny
Dull
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Decorative Aggregates, Interior Decoration
Countertops, Decorative Aggregates, Homes, Interior Decoration
3.1.2 Exterior Uses
Garden Decoration
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings
3.1.3 Other Architectural Uses
Not Yet Used
Curbing
3.2 Industry
3.2.1 Construction Industry
Arrowheads, Cutting Tool, Knives, Scrapers, Spear Points
Building houses or walls, Construction Aggregate
3.2.2 Medical Industry
Surgery
Not Yet Used
3.3 Antiquity Uses
Artifacts, Jewellery
Artifacts, Jewellery, Monuments, Sculpture
3.4 Other Uses
3.4.1 Commercial Uses
Creating Artwork, Mirror, Used in aquariums
Cemetery Markers, Creating Artwork
4 Types
4.1 Types
Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian
Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff and Andesitic tuff.
4.2 Features
Blocks negativity, Helps to protect against depression
Always found as volcanic pipes over deep continental crust
4.3 Archaeological Significance
4.3.1 Monuments
Not Yet Used
Used
4.3.2 Famous Monuments
Not Applicable
Data Not Available
4.3.3 Sculpture
Not Yet Used
Used
4.3.4 Famous Sculptures
Not Applicable
Data Not Available
4.3.5 Pictographs
Used
Used
4.3.6 Petroglyphs
Used
Used
4.3.7 Figurines
Not Yet Used
Used
4.4 Fossils
Absent
Absent
5 Formation
5.1 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.
Hyaloclastite is a type of Igneous rock is formed through the cooling and solidification of lava or magma.
5.2 Composition
5.2.1 Mineral Content
Not Available
Calcite, Chlorite
5.2.2 Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
Hydrogen Sulfide, Sulfur Dioxide
5.3 Transformation
5.3.1 Metamorphism
97% Igneous Rocks Rocks have it !
97% Igneous Rocks Rocks have it !
5.3.2 Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism
5.3.3 Weathering
99% Igneous Rocks Rocks have it !
99% Igneous Rocks Rocks have it !
5.3.4 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
5.3.5 Erosion
92% Igneous Rocks Rocks have it !
92% Igneous Rocks Rocks have it !
5.3.6 Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion
Chemical Erosion, Coastal Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
5-5.5
1-2
6.1.2 Grain Size
Not Applicable
Fine Grained
6.1.3 Fracture
Conchoidal
Not Available
6.1.4 Streak
White
Colorless
6.1.5 Porosity
Very Less Porous
Highly Porous
6.1.6 Luster
Vitreous
Dull and Grainy
6.1.7 Compressive Strength
Flint
0.15 N/mm2
Rank: 33 (Overall)
Not Available
Rank: N/A (Overall)
Obsidian
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6.1.8 Cleavage
Non-Existent
Not Available
6.1.9 Toughness
Not Available
Not Available
6.1.10 Specific Gravity
2.6-2.7
Not Available
6.1.11 Transparency
Translucent
Opaque
6.1.12 Density
2.6 g/cm3
Not Available
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
Banded iron for..
0.92 kJ/Kg K
Rank: 10 (Overall)
Not Available
Rank: N/A (Overall)
Granulite
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6.2.2 Resistance
Heat Resistant, Impact Resistant
Heat Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
Afghanistan, Indonesia, Japan, Russia
Russia
7.1.2 Africa
Kenya
South Africa
7.1.3 Europe
Greece, Hungary, Iceland, Italy, Turkey
Iceland
7.1.4 Others
Not Yet Found
Not Yet Found
7.2 Deposits in Western Continents
7.2.1 North America
Canada, Mexico, USA
Canada, USA
7.2.2 South America
Argentina, Chile, Ecuador, Peru
Brazil, Colombia
7.3 Deposits in Oceania Continent
7.3.1 Australia
New Zealand
Not Yet Found

Obsidian vs Hyaloclastite  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 Hyaloclastite  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. Hyaloclastite is an aggregate of fine, glassy debris formed by the sudden contact of hot, coherent magma and cold water or water-saturated sediment. 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 Hyaloclastite  information and Obsidian vs Hyaloclastite  characteristics in the upcoming sections.

Obsidian vs Hyaloclastite  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 Hyaloclastite  characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Obsidian and Properties of Hyaloclastite  . Learn more about Obsidian vs Hyaloclastite  in the next section. The interior uses of Obsidian include Decorative aggregates and Interior decoration whereas the interior uses of Hyaloclastite  include Countertops, Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Obsidian and Hyaloclastite  , 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 Hyaloclastite  include Building houses or walls, Construction aggregate.

More about Obsidian and Hyaloclastite 

Here you can know more about Obsidian and Hyaloclastite  . The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Obsidian and Hyaloclastite  consists of mineral content and compound content. The mineral content of Obsidian is not available and mineral content of Hyaloclastite  includes Calcite, Chlorite. You can also check out the list of all Igneous Rocks. When we have to compare Obsidian vs Hyaloclastite  , 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, Hyaloclastite  is available in brown, grey, yellow colors. Appearance of Obsidian is Shiny and that of Hyaloclastite  is Dull. Properties of rock is another aspect for Obsidian vs Hyaloclastite  . The hardness of Obsidian is 5-5.5 and that of Hyaloclastite  is 1-2. The types of Obsidian are Fireworks Obsidian, Mahogany, Sheen Obsidian, Snowflake obsidian and Velvet Peacock Obsidian whereas types of Hyaloclastite  are Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff and Andesitic tuff.. 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 Hyaloclastite  is colorless. The specific heat capacity of Obsidian is 0.92 kJ/Kg K and that of Hyaloclastite  is Not Available. 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 Hyaloclastite  is heat resistant.