Lignite

Dolomite

Lignite and Dolomite

Lignite

Dolomite

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1 Definition

1.1 Definition

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

Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight

1.2 History

1.2.1 Origin

France

Southern Alps, France

1.2.2 Discoverer

Unknown

Dolomieu

1.3 Etymology

From French, Latin lignum wood + -ite1

From French, from the name of Dolomieu (1750–1801), the French geologist who discovered the rock

1.4 Class

Sedimentary Rocks

1.4.1 Sub-Class

Durable Rock, Soft Rock

Durable Rock, Medium Hardness Rock

1.5 Family

1.5.1 Group

Not Applicable

1.6 Other Categories

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

2 Texture

2.1 Texture

Amorphous, Glassy

Earthy

2.2 Color

Black, Brown, Dark Brown, Grey, Light to Dark Grey

Black, Brown, Colourless, Green, Grey, Pink, White

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

2.4.2 Scratch Resistant

✔ ✘

2.4.3 Stain Resistant

✔ ✘

2.4.4 Wind Resistant

✔ ✘

2.4.5 Acid Resistant

✔ ✘

2.5 Appearance

Veined or Pebbled

Glassy or Pearly

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Not Yet Used

Decorative Aggregates, Homes, Interior Decoration

3.1.2 Exterior Uses

Not Yet Used

Garden Decoration, Office Buildings

3.1.3 Other Architectural Uses

Not Yet Used

3.2 Industry

3.2.1 Construction Industry

for Road Aggregate, Steel Production

As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories, Production of Glass and Ceramics, Serves as an Oil and Gas Reservoir rock

3.2.2 Medical Industry

Not Yet Used

Taken as a Supplement for Calcium or Magnesium

3.3 Antiquity Uses

Not Yet Used

Artifacts, Jewellery, Monuments, Sculpture, Small Figurines

3.4 Other Uses

3.4.1 Commercial Uses

Electricity Generation

An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO)

4 Types

4.1 Types

Xyloid Lignite or Fossil Wood and Compact Lignite or Perfect Lignite

Boninite and Jasperoid

4.2 Features

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

Host Rock for Lead, Traps for subsurface fluids like Oil and Natural Gas., Zinc and Copper Deposits

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

4.3.6 Petroglyphs

Used

4.3.7 Figurines

Not Yet Used

Used

4.4 Fossils

Present

5 Formation

5.1 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.

Dolomite rocks are originally deposited as calcite or aragonite rich limestone, but during diagenesis process, the calcite or aragonite is transformed into dolomite.

5.2 Composition

5.2.1 Mineral Content

Not Available

Clay Minerals, Pyrite, Quartz, Sulfides

5.2.2 Compound Content

Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur

NaCl, CaO, Carbon Dioxide, Magnesium Carbonate, MgO

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Not Applicable

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Not Applicable

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Chemical Erosion, Water Erosion, Wind Erosion

Not Applicable

6 Properties

6.1 Physical Properties

6.1.1 Hardness

13.5-4

1 7

6.1.2 Grain Size

Medium to Fine Coarse Grained

6.1.3 Fracture

Conchoidal

6.1.4 Streak

Black

White

6.1.5 Porosity

Highly Porous

Less Porous

6.1.6 Luster

Dull to Vitreous to Submetallic

Vitreous and Pearly

6.1.7 Compressive Strength

NA140.00 N/mm²

0.15 450

6.1.8 Cleavage

Non-Existent

Perfect

6.1.9 Toughness

Not Available

6.1.10 Specific Gravity

1.1-1.42.8-3

0 8.4

6.1.11 Transparency

Opaque

Transparent to Translucent

6.1.12 Density

800-801 g/cm³2.8-2.9 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

1.26 kJ/Kg K0.92 kJ/Kg K

0.14 3.2

6.2.2 Resistance

Heat Resistant

Heat Resistant, Pressure Resistant, Wear Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam

China, India

7.1.2 Africa

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

Morocco, Namibia

7.1.3 Europe

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

Austria, Italy, Romania, Spain, Switzerland

7.1.4 Others

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Canada, Mexico, USA

Mexico, USA

7.2.2 South America

Brazil, Chile, Colombia, Venezuela

Brazil, Colombia

7.3 Deposits in Oceania Continent

7.3.1 Australia

New South Wales, Queensland, Victoria

New South Wales, Queensland, Yorke Peninsula

All about Lignite and Dolomite Properties

Know all about Lignite and Dolomite properties here. All properties of rocks are important as they define the type of rock and its application. Lignite and Dolomite belong to Sedimentary Rocks.Texture of Lignite is Amorphous, Glassy whereas that of Dolomite is Earthy. Lignite appears Veined or Pebbled and Dolomite appears Glassy or Pearly. The luster of Lignite is dull to vitreous to submetallic while that of Dolomite is vitreous and pearly. Lignite is available in black, brown, dark brown, grey, light to dark grey colors whereas Dolomite is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Lignite are electricity generation and that of Dolomite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo).