Andesite

Anthracite

Andesite vs Anthracite

Andesite

Anthracite

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1 Definition

1.1 Definition

Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava

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

1.2 History

1.2.1 Origin

North America

Pennsylvania, U.S.

1.2.2 Discoverer

Unknown

1.3 Etymology

From Andes mountains, where it is found in abundance

From Greek anthrakites, from anthrax, anthrak meaning coal

1.4 Class

Igneous Rocks

Metamorphic Rocks

1.4.1 Sub-Class

Durable Rock, Hard Rock

Durable Rock, Soft Rock

1.5 Family

1.5.1 Group

Volcanic

Not Applicable

1.6 Other Categories

Fine Grained Rock, Opaque Rock

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

2 Texture

2.1 Texture

Aphanitic to Porphyritic

Amorphous, Glassy

2.2 Color

Bluish - Grey, Grey, Pink, Yellow

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

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

81% Igneous Rocks Rocks have it !

✔ ✘

81% Metamorphic Rocks Rocks have it !

2.4.2 Scratch Resistant

✔ ✘

86% Igneous Rocks Rocks have it !

✔ ✘

65% Metamorphic Rocks Rocks have it !

2.4.3 Stain Resistant

✔ ✘

66% Igneous Rocks Rocks have it !

✔ ✘

42% Metamorphic Rocks Rocks have it !

2.4.4 Wind Resistant

✔ ✘

49% Igneous Rocks Rocks have it !

✔ ✘

19% Metamorphic Rocks Rocks have it !

2.4.5 Acid Resistant

✔ ✘

48% Igneous Rocks Rocks have it !

✔ ✘

15% Metamorphic Rocks Rocks have it !

2.5 Appearance

Dull and Soft

Veined or Pebbled

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Floor Tiles, Homes, Interior Decoration, Kitchens

Not Yet Used

3.1.2 Exterior Uses

Office Buildings, Roof Tiles

Not Yet Used

3.1.3 Other Architectural Uses

Curbing

Not Yet Used

3.2 Industry

3.2.1 Construction Industry

Cobblestones, Construction Aggregate, for Road Aggregate

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

3.2.2 Medical Industry

Not Yet Used

In Chemical and Pharmaceutical Industry, Manufacture of Aspirins

3.3 Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Not Yet Used

3.4 Other Uses

3.4.1 Commercial Uses

Commemorative Tablets, Creating Artwork

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

4 Types

4.1 Types

Icelandite

Semi-anthracite and Meta-anthracite

4.2 Features

Generally rough to touch, High silica content, Is one of the oldest rock

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

4.3 Archaeological Significance

4.3.1 Monuments

Used

Not Yet Used

4.3.2 Famous Monuments

Middle of the Earth in Ecuador

Not Applicable

4.3.3 Sculpture

Used

Not Yet Used

4.3.4 Famous Sculptures

Data Not Available

Not Applicable

4.3.5 Pictographs

Not Used

Used

4.3.6 Petroglyphs

Not Used

Used

4.3.7 Figurines

Used

Not Yet Used

4.4 Fossils

Absent

5 Formation

5.1 Formation

Andesite is a fine-grained igneous rock that forms when the magma is erupted onto the surface and is crystallized quickly.

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.

5.2 Composition

5.2.1 Mineral Content

Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite, Magnetite, Plagioclase, Pyroxene, Zircon

Calcite, Clay, Clay Minerals

5.2.2 Compound Content

Silicon Dioxide

Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

97% Igneous Rocks Rocks have it !

✔ ✘

50% Metamorphic Rocks Rocks have it !

5.3.2 Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism

Burial Metamorphism, Contact Metamorphism, Regional Metamorphism

5.3.3 Weathering

✔ ✘

99% Igneous Rocks Rocks have it !

✔ ✘

65% Metamorphic Rocks Rocks have it !

5.3.4 Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Not Applicable

5.3.5 Erosion

✔ ✘

92% Igneous Rocks Rocks have it !

✔ ✘

77% Metamorphic Rocks Rocks have it !

5.3.6 Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion

Not Applicable

6 Properties

6.1 Physical Properties

6.1.1 Hardness

1-1.5

6.1.2 Grain Size

Very fine-grained

Medium to Fine Coarse Grained

6.1.3 Fracture

Uneven

Conchoidal

6.1.4 Streak

White

Black

6.1.5 Porosity

Less Porous

6.1.6 Luster

Vitreous

Shiny

6.1.7 Compressive Strength

Flint

⊕

▶

▼

225.00 N/mm²

Rank: 7 (Overall)▶

Not Available

Rank: N/A (Overall)▶

▲

Obsidian

⊕

▶

175 (Granite)

◀ ▶ ADD ⊕

6.1.8 Cleavage

Not Available

Non-Existent

6.1.9 Toughness

1.1

Not Available

6.1.10 Specific Gravity

2.5-2.8

1.1-1.4

6.1.11 Transparency

Opaque

6.1.12 Density

2.11-2.36 g/cm³

1.25-2.5 g/cm³

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

Banded iron for..

⊕

▶

▼

2.39 kJ/Kg K

Rank: 2 (Overall)▶

1.32 kJ/Kg K

Rank: 4 (Overall)▶

▲

Granulite

⊕

▶

1.09 (Travertine)

◀ ▶ ADD ⊕

6.2.2 Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Water Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

India, Indonesia, Japan, Nepal, South Korea

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

7.1.2 Africa

Egypt, Ethiopia, Morocco, Namibia, South Africa, Tanzania

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

7.1.3 Europe

Austria, Finland, Germany, Italy, Romania, Turkey, United Kingdom

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

7.1.4 Others

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Mexico, USA

Canada, Mexico, USA

7.2.2 South America

Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

Brazil, Chile, Colombia, Venezuela

7.3 Deposits in Oceania Continent

7.3.1 Australia

New South Wales, New Zealand, Western Australia

New South Wales, Queensland, Victoria

Andesite vs Anthracite 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 Andesite and Anthracite Reserves. Andesite is a dark, fine-grained, brown or greyish intermediate volcanic rock which is a commonly found in lava. Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster. 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 Andesite vs Anthracite information and Andesite vs Anthracite characteristics in the upcoming sections.

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Andesite vs Anthracite 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. Andesite vs Anthracite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Andesite and Properties of Anthracite. Learn more about Andesite vs Anthracite in the next section. The interior uses of Andesite include Decorative aggregates, Floor tiles, Homes, Interior decoration and Kitchens whereas the interior uses of Anthracite include Not yet used. Due to some exceptional properties of Andesite and Anthracite, they have various applications in construction industry. The uses of Andesite in construction industry include Cobblestones, Construction aggregate, For road aggregate and that of Anthracite include Cement manufacture, For road aggregate, Making natural cement, Steel production.

More about Andesite and Anthracite

Here you can know more about Andesite and Anthracite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Andesite and Anthracite consists of mineral content and compound content. The mineral content of Andesite includes Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite, Magnetite, Plagioclase, Pyroxene, Zircon and mineral content of Anthracite includes Calcite, Clay, Clay Minerals. You can also check out the list of all Igneous Rocks. When we have to compare Andesite vs Anthracite, the texture, color and appearance plays an important role in determining the type of rock. Andesite is available in bluish - grey, grey, pink, yellow colors whereas, Anthracite is available in black, brown, dark brown, grey, light to dark grey colors. Appearance of Andesite is Dull and Soft and that of Anthracite is Veined or Pebbled. Properties of rock is another aspect for Andesite vs Anthracite. The hardness of Andesite is 7 and that of Anthracite is 1-1.5. The types of Andesite are Icelandite whereas types of Anthracite are Semi-anthracite and Meta-anthracite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Andesite is white while that of Anthracite is black. The specific heat capacity of Andesite is 2.39 kJ/Kg K and that of Anthracite is 1.32 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Andesite is heat resistant, pressure resistant, wear resistant whereas Anthracite is heat resistant, water resistant.