Anthracite

Amphibolite

Anthracite vs Amphibolite

Anthracite

Amphibolite

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1 Definition

1.1 Definition

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

Amphibolite can be defined as a granular metamorphic rock which mainly consist of hornblende and plagioclase

1.2 History

1.2.1 Origin

Pennsylvania, U.S.

Unknown

1.2.2 Discoverer

Unknown

Alexandre Brongniart

1.3 Etymology

From Greek anthrakites, from anthrax, anthrak meaning coal

From Amphibole + -ite

1.4 Class

Metamorphic Rocks

1.4.1 Sub-Class

Durable Rock, Soft Rock

Durable Rock, Hard 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

Coarse Grained Rock, Medium Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Amorphous, Glassy

Banded, Foliated, Massive

2.2 Color

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

Black, Brown, Green, Grey

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

Foliated

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Not Yet Used

Countertops, Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Hotels, Kitchens

3.1.2 Exterior Uses

Not Yet Used

As Building Stone, As Facing Stone, Paving Stone, Office Buildings

3.1.3 Other Architectural Uses

Not Yet Used

Curbing

3.2 Industry

3.2.1 Construction Industry

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

As Dimension Stone, Building houses or walls, Cobblestones, Construction Aggregate, for Road Aggregate, Landscaping, Production of Glass and Ceramics, Roadstone

3.2.2 Medical Industry

In Chemical and Pharmaceutical Industry, Manufacture of Aspirins

Not Yet Used

3.3 Antiquity Uses

Not Yet Used

Artifacts, Sculpture, Small Figurines

3.4 Other Uses

3.4.1 Commercial Uses

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

Cemetery Markers, Commemorative Tablets, Creating Artwork

4 Types

4.1 Types

Semi-anthracite and Meta-anthracite

Hornblendite

4.2 Features

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

Clasts are smooth to touch, Matrix variable, Surfaces are often shiny

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

Not Used

4.3.6 Petroglyphs

Used

Not Used

4.3.7 Figurines

Not Yet Used

Used

4.4 Fossils

Absent

5 Formation

5.1 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.

Amphibolite is a coarse-grained metamorphic rock which forms by metamorphism of mafic igneous rocks like basalt and gabbro or from the metamorphism of clay-rich sedimentary rocks like marl or graywacke.

5.2 Composition

5.2.1 Mineral Content

Calcite, Clay, Clay Minerals

Amphibole, Andalusite, Biotite, Calcite, Epidote, Garnet, Hornblade, Kyanite, Magnetite, Olivine, Plagioclase, Pyroxene, Staurolite, Wollastonite

5.2.2 Compound Content

Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur

Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Burial Metamorphism, Contact Metamorphism, Regional Metamorphism

Not Applicable

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Not Applicable

Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Not Applicable

Chemical Erosion, Glacier Erosion, Sea Erosion, Wind Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

1-1.56-7

1 7

6.1.2 Grain Size

Medium to Fine Coarse Grained

Medium to Coarse Grained

6.1.3 Fracture

Conchoidal

Irregular to Conchoidal

6.1.4 Streak

Black

White to Grey

6.1.5 Porosity

Less Porous

6.1.6 Luster

Shiny

Vitreous to Dull

6.1.7 Compressive Strength

NANA

0.15 450

6.1.8 Cleavage

Non-Existent

Irregular

6.1.9 Toughness

Not Available

2.3

6.1.10 Specific Gravity

1.1-1.42.5

0 8.4

6.1.11 Transparency

Opaque

6.1.12 Density

1.25-2.5 g/cm³2.85-3.07 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

1.32 kJ/Kg KNA

0.14 3.2

6.2.2 Resistance

Heat Resistant, Water 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

Russia, Turkey

7.1.2 Africa

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

Burundi, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Rwanda, Somalia, South Africa, Sudan, Tanzania, Uganda

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

Germany, Greece, Iceland, Norway, Poland

7.1.4 Others

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Canada, Mexico, USA

Canada, USA

7.2.2 South America

Brazil, Chile, Colombia, Venezuela

Brazil

7.3 Deposits in Oceania Continent

7.3.1 Australia

New South Wales, Queensland, Victoria

South Australia, Western Australia

Anthracite vs Amphibolite 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 Anthracite and Amphibolite Reserves. Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster. Amphibolite can be defined as a granular metamorphic rock which mainly consist of hornblende and plagioclase. 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 Anthracite vs Amphibolite information and Anthracite vs Amphibolite characteristics in the upcoming sections.

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Anthracite vs Amphibolite 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. Anthracite vs Amphibolite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Anthracite and Properties of Amphibolite. Learn more about Anthracite vs Amphibolite in the next section. The interior uses of Anthracite include Not yet used whereas the interior uses of Amphibolite include Countertops, Decorative aggregates, Entryways, Floor tiles, Flooring, Homes, Hotels and Kitchens. Due to some exceptional properties of Anthracite and Amphibolite, they have various applications in construction industry. The uses of Anthracite in construction industry include Cement manufacture, For road aggregate, Making natural cement, Steel production and that of Amphibolite include As dimension stone, Building houses or walls, Cobblestones, Construction aggregate, For road aggregate, Landscaping, Production of glass and ceramics, Roadstone.

More about Anthracite and Amphibolite

Here you can know more about Anthracite and Amphibolite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Anthracite and Amphibolite consists of mineral content and compound content. The mineral content of Anthracite includes Calcite, Clay, Clay Minerals and mineral content of Amphibolite includes Amphibole, Andalusite, Biotite, Calcite, Epidote, Garnet, Hornblade, Kyanite, Magnetite, Olivine, Plagioclase, Pyroxene, Staurolite, Wollastonite. You can also check out the list of all Metamorphic Rocks. When we have to compare Anthracite vs Amphibolite, the texture, color and appearance plays an important role in determining the type of rock. Anthracite is available in black, brown, dark brown, grey, light to dark grey colors whereas, Amphibolite is available in black, brown, green, grey colors. Appearance of Anthracite is Veined or Pebbled and that of Amphibolite is Foliated. Properties of rock is another aspect for Anthracite vs Amphibolite. The hardness of Anthracite is 1-1.5 and that of Amphibolite is 6-7. The types of Anthracite are Semi-anthracite and Meta-anthracite whereas types of Amphibolite are Hornblendite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Anthracite is black while that of Amphibolite is white to grey. The specific heat capacity of Anthracite is 1.32 kJ/Kg K and that of Amphibolite is Not Available. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Anthracite is heat resistant, water resistant whereas Amphibolite is heat resistant, pressure resistant, wear resistant.