Coal

Diamictite

Coal and Diamictite

Coal

Diamictite

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Definition

Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers called coal beds

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

USA

Southern Mongolia

Discoverer

John Peter Salley

Unknown

Etymology

From the Old English term col, which has meant mineral of fossilized carbon since the 13th century

From Greek dia through and meiktós or mixed

Class

Sedimentary Rocks

Sub-Class

Durable Rock, Soft Rock

Family

Group

Other Categories

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

Coarse Grained Rock, Opaque Rock

Texture

Amorphous, Glassy

Clastic

Color

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

Brown, Buff

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Veined or Pebbled

Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration

Exterior Uses

As Building Stone, Paving Stone

Other Architectural Uses

Curbing

Industry

Construction Industry

Cement Manufacture, for Road Aggregate, Making natural cement, Steel Production

As Dimension Stone, Construction Aggregate, for Road Aggregate, Landscaping, Roadstone

Medical Industry

Antiquity Uses

Artifacts

Other Uses

Commercial Uses

Alumina Refineries, Electricity Generation, Liquid Fuel, Manufacture of Soap, Solvents, Dyes, Plastics and Fibres, Paper Industry

Commemorative Tablets, Creating Artwork, Production of Lime

Types

Peat, Lignite, Sub-Bituminous Coal, Bituminous Coal, Anthracite, Graphite

Bedded Diamictite and Laminated Diamictite

Features

Helps in production of Heat and Electricity, Used as fossil fuel

Host Rock for Lead, Is one of the oldest rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Present

Formation

Coal forms from the accumulation of plant debris in a swamp environment which is buried by sediments such as mud or sand and then compacted to form coal.

Diamictite is unevenly sorted terrigenous, non-calcareous sedimentary rock which forms due to weathering of mudstone and sandstone.

Composition

Mineral Content

Analcime, Apatite, Barite, Calcite, Chalcopyrite, Chlorite, Chromite, Clausthalite, Clay Minerals, Crandallite Group, Dolomite, Feldspar, Galena, Gypsum, Marcasite, Muscovite or Illite, Pyrite, Quartz, Siderite, Sphalerite, Zircon

Calcite, Clay, Feldspar, Micas, Quartz

Compound Content

Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Water Erosion

Properties

Physical Properties

Hardness

1-1.52-3

1 7

👆🏻

Grain Size

Medium to Fine Coarse Grained

Coarse Grained

Fracture

Conchoidal

Conchoidal to Uneven

Streak

Black

Light to dark brown

Porosity

Less Porous

Highly Porous

Luster

Dull to Vitreous to Submetallic

Grainy, Pearly and Vitreous

Compressive Strength

0.15 450

👆🏻

Cleavage

Toughness

Specific Gravity

1.1-1.44.3-5.0

0 8.4

👆🏻

Transparency

Opaque

Density

1100-1400 g/cm³2.2-2.35 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

1.32 kJ/Kg K0.75 kJ/Kg K

0.14 3.2

👆🏻

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

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 Coal and Diamictite Properties

Know all about Coal and Diamictite properties here. All properties of rocks are important as they define the type of rock and its application. Coal and Diamictite belong to Sedimentary Rocks.Texture of Coal is Amorphous, Glassy whereas that of Diamictite is Clastic. Coal appears Veined or Pebbled and Diamictite appears Banded. The luster of Coal is dull to vitreous to submetallic while that of Diamictite is grainy, pearly and vitreous. Coal 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 Coal are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry and that of Diamictite are commemorative tablets, creating artwork, production of lime.