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Variolite
Variolite

Serpentinite
Serpentinite



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Variolite vs Serpentinite

1 Definition
1.1 Definition
Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance
A hydration and metamorphic transformation of ultramafic rock from the Earth's mantle is called as serpentinization, a group of minerals is formed by serpentinization compose rock 'serpentinite'.
1.2 History
1.2.1 Origin
France
USA
1.2.2 Discoverer
Unknown
Unknown
1.3 Etymology
From Latin varius, speckled, variegated
From English word serpentinization.
1.4 Class
Igneous Rocks
Metamorphic Rocks
1.4.1 Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
1.5 Family
1.5.1 Group
Volcanic
Not Applicable
1.6 Other Categories
Opaque Rock
Fine Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Glassy, Massive, Porphyritic, Scoriaceous, Vesicular
Earthy
2.2 Color
Black, Brown, Light to Dark Grey
Black, Brown, Colourless, Green, Grey, White
2.3 Maintenance
Less
Less
2.4 Durability
Durable
Durable
2.4.1 Water Resistant
81% Igneous Rocks Rocks have it !
81% Metamorphic Rocks Rocks have it !
2.4.2 Scratch Resistant
86% Igneous Rocks Rocks have it !
65% Metamorphic Rocks Rocks have it !
2.4.3 Stain Resistant
66% Igneous Rocks Rocks have it !
42% Metamorphic Rocks Rocks have it !
2.4.4 Wind Resistant
49% Igneous Rocks Rocks have it !
19% Metamorphic Rocks Rocks have it !
2.4.5 Acid Resistant
48% Igneous Rocks Rocks have it !
15% Metamorphic Rocks Rocks have it !
2.5 Appearance
Dull and Soft
Rough and Dull
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Floor Tiles, Flooring, Homes, Hotels, Kitchens
Decorative Aggregates, Interior Decoration
3.1.2 Exterior Uses
Garden Decoration, Office Buildings
As Building Stone, Paving Stone, Garden Decoration, Office Buildings
3.1.3 Other Architectural Uses
Curbing
Curbing
3.2 Industry
3.2.1 Construction Industry
As Dimension Stone, Cobblestones, Rail Track Ballast, Roadstone
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement
3.2.2 Medical Industry
Not Yet Used
Not Yet Used
3.3 Antiquity Uses
Artifacts, Monuments, Sculpture
Artifacts, Jewellery, Monuments, Sculpture
3.4 Other Uses
3.4.1 Commercial Uses
Cemetery Markers, Creating Artwork
Commemorative Tablets, Creating Artwork
4 Types
4.1 Types
Not Available
Jadeitite
4.2 Features
Has High structural resistance against erosion and climate, Very fine grained rock
Host Rock for Lead
4.3 Archaeological Significance
4.3.1 Monuments
Used
Used
4.3.2 Famous Monuments
Data Not Available
Data Not Available
4.3.3 Sculpture
Used
Used
4.3.4 Famous Sculptures
Data Not Available
Data Not Available
4.3.5 Pictographs
Used
Used
4.3.6 Petroglyphs
Used
Used
4.3.7 Figurines
Used
Used
4.4 Fossils
Absent
Absent
5 Formation
5.1 Formation
Variolites are a group of dark green basic igneous rocks that exhibit pale colored spots on weathered surfaces that give them a pockmarked appearance.
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Serpentinite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.
5.2 Composition
5.2.1 Mineral Content
Olivine, Plagioclase, Pyroxene
Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides
5.2.2 Compound Content
Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide
Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur
5.3 Transformation
5.3.1 Metamorphism
97% Igneous Rocks Rocks have it !
50% Metamorphic Rocks Rocks have it !
5.3.2 Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism
5.3.3 Weathering
99% Igneous Rocks Rocks have it !
65% Metamorphic Rocks Rocks have it !
5.3.4 Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Not Applicable
5.3.5 Erosion
92% Igneous Rocks Rocks have it !
77% Metamorphic Rocks Rocks have it !
5.3.6 Types of Erosion
Not Applicable
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Wind Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
6
3-5
6.1.2 Grain Size
Not Applicable
Very fine-grained
6.1.3 Fracture
Conchoidal
Uneven
6.1.4 Streak
White to Grey
White, Greenish White or Grey
6.1.5 Porosity
Less Porous
Less Porous
6.1.6 Luster
Not Available
Waxy and Dull
6.1.7 Compressive Strength
Flint
37.50 N/mm2
Rank: 27 (Overall)
310.00 N/mm2
Rank: 2 (Overall)
Obsidian
ADD ⊕
6.1.8 Cleavage
Not Available
Irregular
6.1.9 Toughness
2.3
7
6.1.10 Specific Gravity
2.8-3
2.79-3
6.1.11 Transparency
Opaque
Opaque
6.1.12 Density
2.9-3.1 g/cm3
2.5-3 g/cm3
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
Banded iron for..
0.84 kJ/Kg K
Rank: 15 (Overall)
0.95 kJ/Kg K
Rank: 9 (Overall)
Granulite
ADD ⊕
6.2.2 Resistance
Heat Resistant, Pressure Resistant, Wear Resistant
Heat Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
India, Russia
India, Saudi Arabia, Singapore, South Korea
7.1.2 Africa
South Africa
Ethiopia, Western Africa
7.1.3 Europe
Iceland
England, Georgia, Switzerland, United Kingdom
7.1.4 Others
Not Yet Found
Not Yet Found
7.2 Deposits in Western Continents
7.2.1 North America
Canada, USA
Canada
7.2.2 South America
Brazil
Colombia
7.3 Deposits in Oceania Continent
7.3.1 Australia
Not Yet Found
Central Australia, New South Wales, New Zealand, Western Australia

Variolite vs Serpentinite 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 Variolite and Serpentinite Reserves. Variolites are a group of dark green basic igneous rocks which exhibit pale colored spots, or spherules, especially on weathered surfaces, that give them a pockmarked appearance. A hydration and metamorphic transformation of ultramafic rock from the Earth's mantle is called as serpentinization, a group of minerals is formed by serpentinization compose rock 'serpentinite'.. 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 Variolite vs Serpentinite information and Variolite vs Serpentinite characteristics in the upcoming sections.

Variolite vs Serpentinite 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. Variolite vs Serpentinite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Variolite and Properties of Serpentinite. Learn more about Variolite vs Serpentinite in the next section. The interior uses of Variolite include Floor tiles, Flooring, Homes, Hotels and Kitchens whereas the interior uses of Serpentinite include Decorative aggregates and Interior decoration. Due to some exceptional properties of Variolite and Serpentinite, they have various applications in construction industry. The uses of Variolite in construction industry include As dimension stone, Cobblestones, Rail track ballast, Roadstone and that of Serpentinite include As dimension stone, Cement manufacture, For road aggregate, Making natural cement.

More about Variolite and Serpentinite

Here you can know more about Variolite and Serpentinite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Variolite and Serpentinite consists of mineral content and compound content. The mineral content of Variolite includes Olivine, Plagioclase, Pyroxene and mineral content of Serpentinite includes Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides. You can also check out the list of all Igneous Rocks. When we have to compare Variolite vs Serpentinite, the texture, color and appearance plays an important role in determining the type of rock. Variolite is available in black, brown, light to dark grey colors whereas, Serpentinite is available in black, brown, colourless, green, grey, white colors. Appearance of Variolite is Dull and Soft and that of Serpentinite is Rough and Dull. Properties of rock is another aspect for Variolite vs Serpentinite. The hardness of Variolite is 6 and that of Serpentinite is 3-5. The types of Variolite are Not Available whereas types of Serpentinite are Jadeitite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Variolite is white to grey while that of Serpentinite is white, greenish white or grey. The specific heat capacity of Variolite is 0.84 kJ/Kg K and that of Serpentinite is 0.95 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Variolite is heat resistant, pressure resistant, wear resistant whereas Serpentinite is heat resistant.