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Lignite
Lignite

Serpentinite
Serpentinite



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Lignite
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Serpentinite

Lignite vs Serpentinite

Definition

Definition

Lignite is a soft brownish coal which shows traces of plants and is intermediate between bituminous coal and peat
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'.

History

Origin

France
USA

Discoverer

Unknown
Unknown

Etymology

From French, Latin lignum wood + -ite1
From English word serpentinization.

Class

Sedimentary Rocks
Metamorphic Rocks

Sub-Class

Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock

Family

Group

-
-

Other Categories

Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock

Texture

Texture

Amorphous, Glassy
Earthy

Color

Black, Brown, Dark Brown, Grey, Light to Dark Grey
Black, Brown, Green, Grey, White

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Veined or Pebbled
Rough and Dull

Uses

Architecture

Interior Uses

-
Decorative Aggregates, Interior Decoration

Exterior Uses

-
As Building Stone, Paving Stone, Garden Decoration, Office Buildings

Other Architectural Uses

-
Curbing

Industry

Construction Industry

for Road Aggregate, Steel Production
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement

Medical Industry

-
-

Antiquity Uses

-
Artifacts, Jewellery, Monuments, Sculpture

Other Uses

Commercial Uses

Electricity Generation
Commemorative Tablets, Creating Artwork

Types

Types

Xyloid Lignite or Fossil Wood and Compact Lignite or Perfect Lignite
Jadeitite

Features

Generally rough to touch, Helps in production of Heat and Electricity, Used as fossil fuel
Host Rock for Lead

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Present
Absent

Formation

Formation

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.
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.

Composition

Mineral Content

-
Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides

Compound Content

Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur
Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur

Transformation

Metamorphism

Types of Metamorphism

-
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
-

Erosion

Types of Erosion

Chemical Erosion, Water Erosion, Wind Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Wind Erosion

Properties

Physical Properties

Hardness

13-5
1 7
👆🏻

Grain Size

Medium to Fine Coarse Grained
Very fine-grained

Fracture

Conchoidal
Uneven

Streak

Black
White, Greenish White or Grey

Porosity

Highly Porous
Less Porous

Luster

Dull to Vitreous to Submetallic
Waxy and Dull

Compressive Strength

-310.00 N/mm2
0.15 450
👆🏻

Cleavage

-
-

Toughness

-
7

Specific Gravity

1.1-1.42.79-3
0 8.4
👆🏻

Transparency

Opaque
Opaque

Density

800-801 g/cm32.5-3 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

1.26 kJ/Kg K0.95 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant
Heat Resistant

Reserves

Deposits in Eastern Continents

Asia

Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam
India, Saudi Arabia, Singapore, South Korea

Africa

Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania
Ethiopia, Western Africa

Europe

Belgium, Bulgaria, England, France, Germany, Greece, Hungary, Kosovo, Netherlands, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, The Czech Republic, Ukraine, United Kingdom
England, Georgia, Switzerland, United Kingdom

Others

-
-

Deposits in Western Continents

North America

Canada, Mexico, USA
Canada

South America

Brazil, Chile, Colombia, Venezuela
Colombia

Deposits in Oceania Continent

Australia

New South Wales, Queensland, Victoria
Central Australia, New South Wales, New Zealand, Western Australia

Lignite 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 Lignite and Serpentinite Reserves. Lignite is a soft brownish coal which shows traces of plants and is intermediate between bituminous coal and peat. 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 Lignite vs Serpentinite information and Lignite vs Serpentinite characteristics in the upcoming sections.

Lignite 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. Lignite vs Serpentinite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Lignite and Properties of Serpentinite. Learn more about Lignite vs Serpentinite in the next section. The interior uses of Lignite include whereas the interior uses of Serpentinite include Decorative aggregates and Interior decoration. Due to some exceptional properties of Lignite and Serpentinite, they have various applications in construction industry. The uses of Lignite in construction industry include For road aggregate, Steel production and that of Serpentinite include As dimension stone, Cement manufacture, For road aggregate, Making natural cement.

More about Lignite and Serpentinite

Here you can know more about Lignite and Serpentinite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Lignite and Serpentinite consists of mineral content and compound content. The mineral content of Lignite includes and mineral content of Serpentinite includes Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides. You can also check out the list of all Sedimentary Rocks. When we have to compare Lignite vs Serpentinite, the texture, color and appearance plays an important role in determining the type of rock. Lignite is available in black, brown, dark brown, grey, light to dark grey colors whereas, Serpentinite is available in black, brown, green, grey, white colors. Appearance of Lignite is Veined or Pebbled and that of Serpentinite is Rough and Dull. Properties of rock is another aspect for Lignite vs Serpentinite. The hardness of Lignite is 1 and that of Serpentinite is 3-5. The types of Lignite are Xyloid Lignite or Fossil Wood and Compact Lignite or Perfect Lignite 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 Lignite is black while that of Serpentinite is white, greenish white or grey. The specific heat capacity of Lignite is 1.26 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.Lignite is heat resistant whereas Serpentinite is heat resistant.