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Schist
Schist

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Schist vs Lignite

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1 Definition
1.1 Definition
Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation
Lignite is a soft brownish coal which shows traces of plants and is intermediate between bituminous coal and peat
1.2 History
1.2.1 Origin
Unknown
France
1.2.2 Discoverer
Unknown
Unknown
1.3 Etymology
From French schiste, Greek skhistos i.e. split
From French, Latin lignum wood + -ite1
1.4 Class
Metamorphic Rocks
Sedimentary Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
1.5 Family
1.5.1 Group
Not Applicable
Not Applicable
1.6 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
2 Texture
2.1 Texture
Foliated, Platy
Amorphous, Glassy
2.2 Color
Black, Blue, Brown, Dark Brown, Green, Grey, Silver
Black, Brown, Dark Brown, Grey, Light to Dark Grey
2.3 Maintenance
Less
Less
2.4 Durability
Durable
Durable
2.4.1 Water Resistant
81% Metamorphic Rocks Rocks have it !
59% Sedimentary Rocks Rocks have it !
2.4.2 Scratch Resistant
65% Metamorphic Rocks Rocks have it !
62% Sedimentary Rocks Rocks have it !
2.4.3 Stain Resistant
42% Metamorphic Rocks Rocks have it !
43% Sedimentary Rocks Rocks have it !
2.4.4 Wind Resistant
19% Metamorphic Rocks Rocks have it !
38% Sedimentary Rocks Rocks have it !
2.4.5 Acid Resistant
15% Metamorphic Rocks Rocks have it !
22% Sedimentary Rocks Rocks have it !
2.5 Appearance
Layered and Shiny
Veined or Pebbled
3 Uses
3.1 Architecture
3.1.1 Interior Uses
Decorative Aggregates, Floor Tiles, Interior Decoration
Not Yet Used
3.1.2 Exterior Uses
Garden Decoration, Paving Stone
Not Yet Used
3.1.3 Other Architectural Uses
Not Yet Used
Not Yet Used
3.2 Industry
3.2.1 Construction Industry
As Dimension Stone, Building houses or walls, Cement Manufacture, for Road Aggregate, Roadstone
for Road Aggregate, Steel Production
3.2.2 Medical Industry
Not Yet Used
Not Yet Used
3.3 Antiquity Uses
Artifacts
Not Yet Used
3.4 Other Uses
3.4.1 Commercial Uses
Used in aquariums, Writing Slates
Electricity Generation
4 Types
4.1 Types
Mica Schists, Calc-Silicate Schists, Graphite Schists, Blueschists, Whiteschists, Greenschists, Hornblende Schist, Talc Schist, Chlorite Schist, Garnet Schist, Glaucophane schist.
Xyloid Lignite or Fossil Wood and Compact Lignite or Perfect Lignite
4.2 Features
Easily splits into thin plates, Smooth to touch
Generally rough to touch, Helps in production of Heat and Electricity, Used as fossil fuel
4.3 Archaeological Significance
4.3.1 Monuments
Not Yet Used
Not Yet Used
4.3.2 Famous Monuments
Not Applicable
Not Applicable
4.3.3 Sculpture
Not Yet Used
Not Yet Used
4.3.4 Famous Sculptures
Not Applicable
Not Applicable
4.3.5 Pictographs
Used
Used
4.3.6 Petroglyphs
Used
Used
4.3.7 Figurines
Not Yet Used
Not Yet Used
4.4 Fossils
Absent
Present
5 Formation
5.1 Formation
Schist formed by dynamic metamorphism at high temperatures and pressures that aligns the grains of mica, hornblende and other elongated minerals into thin layers.
Coal formation takes place due to accumulation of plant debris in a swamp environment. The Coal formation process continues, as peat turns into lignite brown or black coal at increasing heat and pressure.
5.2 Composition
5.2.1 Mineral Content
Alusite, Amphibole, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc
Not Available
5.2.2 Compound Content
CaO, Carbon Dioxide, MgO
Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur
5.3 Transformation
5.3.1 Metamorphism
50% Metamorphic Rocks Rocks have it !
19% Sedimentary Rocks Rocks have it !
5.3.2 Types of Metamorphism
Not Applicable
Not Applicable
5.3.3 Weathering
65% Metamorphic Rocks Rocks have it !
78% Sedimentary 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
77% Metamorphic Rocks Rocks have it !
86% Sedimentary Rocks Rocks have it !
5.3.6 Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion
Chemical Erosion, Water Erosion, Wind Erosion
6 Properties
6.1 Physical Properties
6.1.1 Hardness
3.5-4
1
6.1.2 Grain Size
Medium to Fine Coarse Grained
Medium to Fine Coarse Grained
6.1.3 Fracture
Conchoidal
Conchoidal
6.1.4 Streak
White
Black
6.1.5 Porosity
Highly Porous
Highly Porous
6.1.6 Luster
Shiny
Dull to Vitreous to Submetallic
6.1.7 Compressive Strength
Flint
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Obsidian
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6.1.8 Cleavage
Slaty
Non-Existent
6.1.9 Toughness
1.5
Not Available
6.1.10 Specific Gravity
2.5-2.9
1.1-1.4
6.1.11 Transparency
Opaque
Opaque
6.1.12 Density
2.8-2.9 g/cm3
800-801 g/cm3
6.2 Thermal Properties
6.2.1 Specific Heat Capacity
Banded iron for..
Not Available
Rank: N/A (Overall)
1.26 kJ/Kg K
Rank: 5 (Overall)
Granulite
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6.2.2 Resistance
Impact Resistant, Pressure Resistant, Water Resistant
Heat Resistant
7 Reserves
7.1 Deposits in Eastern Continents
7.1.1 Asia
Afghanistan, Bangladesh, Bhutan, China, India, Japan, Kazakhstan, Malaysia, Pakistan, Russia, Thailand, Turkey, Vietnam
Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam
7.1.2 Africa
Egypt, Ethiopia, Morocco, Nigeria, South Africa
Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania
7.1.3 Europe
Austria, England, France, Georgia, Germany, Italy, Liechtenstein, Monaco, Norway, Slovenia, Spain, Sweden, Switzerland
Belgium, Bulgaria, England, France, Germany, Greece, Hungary, Kosovo, Netherlands, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, The Czech Republic, Ukraine, United Kingdom
7.1.4 Others
Not Yet Found
Not Yet Found
7.2 Deposits in Western Continents
7.2.1 North America
Canada, Costa Rica, Cuba, Mexico, Panama, USA
Canada, Mexico, USA
7.2.2 South America
Brazil, Colombia, Guyana
Brazil, Chile, Colombia, Venezuela
7.3 Deposits in Oceania Continent
7.3.1 Australia
New South Wales, New Zealand, Queensland
New South Wales, Queensland, Victoria

Schist vs Lignite 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 Schist and Lignite Reserves. Schist is a medium grade metamorphic rock with medium to large, flat, sheet like grains in a preferred orientation. Lignite is a soft brownish coal which shows traces of plants and is intermediate between bituminous coal and peat. 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 Schist vs Lignite information and Schist vs Lignite characteristics in the upcoming sections.

Schist vs Lignite 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. Schist vs Lignite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Schist and Properties of Lignite. Learn more about Schist vs Lignite in the next section. The interior uses of Schist include Decorative aggregates, Floor tiles and Interior decoration whereas the interior uses of Lignite include Not yet used. Due to some exceptional properties of Schist and Lignite, they have various applications in construction industry. The uses of Schist in construction industry include As dimension stone, Building houses or walls, Cement manufacture, For road aggregate, Roadstone and that of Lignite include For road aggregate, Steel production.

More about Schist and Lignite

Here you can know more about Schist and Lignite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Schist and Lignite consists of mineral content and compound content. The mineral content of Schist includes Alusite, Amphibole, Biotite, Chlorite, Epidote, Feldspar, Garnet, Graphite, Hornblade, Kyanite, Micas, Muscovite or Illite, Porphyroblasts, Quartz, Sillimanite, Staurolite, Talc and mineral content of Lignite is not available. You can also check out the list of all Metamorphic Rocks. When we have to compare Schist vs Lignite, the texture, color and appearance plays an important role in determining the type of rock. Schist is available in black, blue, brown, dark brown, green, grey, silver colors whereas, Lignite is available in black, brown, dark brown, grey, light to dark grey colors. Appearance of Schist is Layered and Shiny and that of Lignite is Veined or Pebbled. Properties of rock is another aspect for Schist vs Lignite. The hardness of Schist is 3.5-4 and that of Lignite is 1. The types of Schist are Mica Schists, Calc-Silicate Schists, Graphite Schists, Blueschists, Whiteschists, Greenschists, Hornblende Schist, Talc Schist, Chlorite Schist, Garnet Schist, Glaucophane schist. whereas types of Lignite are Xyloid Lignite or Fossil Wood and Compact Lignite or Perfect Lignite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Schist is white while that of Lignite is black. The specific heat capacity of Schist is Not Available and that of Lignite is 1.26 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Schist is impact resistant, pressure resistant, water resistant whereas Lignite is heat resistant.