Anthracite

Diamictite

Anthracite and Diamictite

Anthracite

Diamictite

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Definition

Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster

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

Pennsylvania, U.S.

Southern Mongolia

Discoverer

Unknown

Etymology

From Greek anthrakites, from anthrax, anthrak meaning coal

From Greek dia through and meiktós or mixed

Class

Metamorphic Rocks

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

In Chemical and Pharmaceutical Industry, Manufacture of Aspirins

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

Semi-anthracite and Meta-anthracite

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

Absent

Present

Formation

Anthracite forms from the accumulation of plant debris in a swamp environment. When plant debris dies and falls into the swamp, the standing water of the swamp protects it from decay.

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

Composition

Mineral Content

Calcite, Clay, Clay Minerals

Calcite, Clay, Feldspar, Micas, Quartz

Compound Content

Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Contact 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

Shiny

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

1.25-2.5 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, Water 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 Anthracite and Diamictite Properties

Know all about Anthracite and Diamictite properties here. All properties of rocks are important as they define the type of rock and its application. Anthracite belongs to Metamorphic Rocks while Diamictite belongs to Sedimentary Rocks.Texture of Anthracite is Amorphous, Glassy whereas that of Diamictite is Clastic. Anthracite appears Veined or Pebbled and Diamictite appears Banded. The luster of Anthracite is shiny while that of Diamictite is grainy, pearly and vitreous. Anthracite 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 Anthracite 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.