Lignite and Diamictite
Definition
Definition
Lignite is a soft brownish coal which shows traces of plants and is intermediate between bituminous coal and peat
Diamictite is a sedimentary rock that consists of non-sorted to poorly sorted terrigenous sediment containing particles that range in size from clay to boulders, suspended in a matrix of mudstone or sandstone
History
Origin
France
Southern Mongolia
Discoverer
Unknown
Unknown
Etymology
From French, Latin lignum wood + -ite1
From Greek dia through and meiktós or mixed
Class
Sedimentary Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Soft Rock
Family
Group
Not Applicable
Not Applicable
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock
Texture
Texture
Amorphous, Glassy
Clastic
Color
Black, Brown, Dark Brown, Grey, Light to Dark Grey
Brown, Buff
Maintenance
Less
Less
Durability
Durable
Durable
Water Resistant
No
No
Scratch Resistant
No
No
Stain Resistant
No
No
Wind Resistant
No
No
Acid Resistant
No
No
Appearance
Veined or Pebbled
Banded
Uses
Architecture
Interior Uses
Not Yet Used
Decorative Aggregates, Interior Decoration
Exterior Uses
Not Yet Used
As Building Stone, Paving Stone
Other Architectural Uses
Not Yet Used
Curbing
Industry
Construction Industry
for Road Aggregate, Steel Production
As Dimension Stone, Construction Aggregate, for Road Aggregate, Landscaping, Roadstone
Medical Industry
Not Yet Used
Not Yet Used
Antiquity Uses
Not Yet Used
Artifacts
Other Uses
Commercial Uses
Electricity Generation
Commemorative Tablets, Creating Artwork, Production of Lime
Types
Types
Xyloid Lignite or Fossil Wood and Compact Lignite or Perfect Lignite
Bedded Diamictite and Laminated Diamictite
Features
Generally rough to touch, Helps in production of Heat and Electricity, Used as fossil fuel
Host Rock for Lead, Is one of the oldest rock
Archaeological Significance
Monuments
Not Yet Used
Not Yet Used
Famous Monuments
Not Applicable
Not Applicable
Sculpture
Not Yet Used
Not Yet Used
Famous Sculptures
Not Applicable
Not Applicable
Pictographs
Used
Used
Petroglyphs
Used
Used
Figurines
Not Yet Used
Not Yet Used
Fossils
Present
Present
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.
Diamictite is unevenly sorted terrigenous, non-calcareous sedimentary rock which forms due to weathering of mudstone and sandstone.
Composition
Mineral Content
Not Available
Calcite, Clay, Feldspar, Micas, Quartz
Compound Content
Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur
Not Available
Transformation
Metamorphism
No
No
Types of Metamorphism
Not Applicable
Not Applicable
Weathering
Yes
Yes
Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering
Erosion
Yes
Yes
Types of Erosion
Chemical Erosion, Water Erosion, Wind Erosion
Chemical Erosion, Coastal Erosion, Water Erosion
Properties
Physical Properties
Hardness
1
2-3
Grain Size
Medium to Fine Coarse Grained
Coarse Grained
Fracture
Conchoidal
Conchoidal to Uneven
Streak
Black
Light to dark brown
Porosity
Highly Porous
Highly Porous
Luster
Dull to Vitreous to Submetallic
Grainy, Pearly and Vitreous
Cleavage
Non-Existent
Not Available
Toughness
Not Available
Not Available
Specific Gravity
1.1-1.4
4.3-5.0
Transparency
Opaque
Opaque
Density
800-801 g/cm3
2.2-2.35 g/cm3
Thermal Properties
Specific Heat Capacity
1.26 kJ/Kg K
5
0.75 kJ/Kg K
18
Resistance
Heat Resistant
Heat Resistant, Impact Resistant
Reserves
Deposits in Eastern Continents
Asia
Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam
China, India, Kazakhstan, Mongolia, Russia
Africa
Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania
Namibia, Nigeria, South Africa
Europe
Belgium, Bulgaria, England, France, Germany, Greece, Hungary, Kosovo, Netherlands, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, The Czech Republic, Ukraine, United Kingdom
Austria, Denmark, Germany, Great Britain, Netherlands, Norway, Poland, Sweden, Switzerland, United Kingdom
Others
Not Yet Found
Not Yet Found
Deposits in Western Continents
North America
Canada, Mexico, USA
Canada, USA
South America
Brazil, Chile, Colombia, Venezuela
Brazil, Venezuela
Deposits in Oceania Continent
Australia
New South Wales, Queensland, Victoria
New South Wales, New Zealand
All about Lignite and Diamictite Properties
Know all about Lignite and Diamictite properties here. All properties of rocks are important as they define the type of rock and its application. Lignite and Diamictite belong to Sedimentary Rocks.Texture of Lignite is Amorphous, Glassy whereas that of Diamictite is Clastic. Lignite appears Veined or Pebbled and Diamictite appears Banded. The luster of Lignite is dull to vitreous to submetallic while that of Diamictite is grainy, pearly and vitreous. Lignite is available in black, brown, dark brown, grey, light to dark grey colors whereas Diamictite is available in brown, buff colors. The commercial uses of Lignite are electricity generation and that of Diamictite are commemorative tablets, creating artwork, production of lime.
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