Anthracite

Essexite

Anthracite vs Essexite

Anthracite

Essexite

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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

Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock

1.2 History

1.2.1 Origin

Pennsylvania, U.S.

USA

1.2.2 Discoverer

Unknown

1.3 Etymology

From Greek anthrakites, from anthrax, anthrak meaning coal

From the locality in Essex County, Massachusetts,US

1.4 Class

Metamorphic Rocks

Igneous Rocks

1.4.1 Sub-Class

Durable Rock, Soft Rock

Durable Rock, Hard Rock

1.5 Family

1.5.1 Group

Not Applicable

Plutonic

1.6 Other Categories

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

Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Amorphous, Glassy

Granular

2.2 Color

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

Dark Grey to Black

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

Banded

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Not Yet Used

Decorative Aggregates, Homes, Interior Decoration

3.1.2 Exterior Uses

Not Yet Used

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

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, Cement Manufacture, Construction Aggregate, for Road Aggregate

3.2.2 Medical Industry

In Chemical and Pharmaceutical Industry, Manufacture of Aspirins

Not Yet Used

3.3 Antiquity Uses

Not Yet Used

Artifacts, Monuments, 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, Jewelry, Sea Defence, Tombstones

4 Types

4.1 Types

Semi-anthracite and Meta-anthracite

Not Available

4.2 Features

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

Is one of the oldest rock, Smooth to touch

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.

Essexite is a type of igneous rock, which is usually dark grey to black plutonic rock. For the formation of essexite, suitable magma with exact composition of K, Ba, Rb, Cs, Sr should be produced.

5.2 Composition

5.2.1 Mineral Content

Calcite, Clay, Clay Minerals

Augite, Feldspar, Hornblende, Nepheline, Olivine, Plagioclase, Pyroxene

5.2.2 Compound Content

Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur

Aluminium Oxide, Ba, Ca, Cs, Potassium, Rb, Sodium, Sr

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Burial Metamorphism, Contact Metamorphism, Regional Metamorphism

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

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Not Applicable

Biological Weathering, Chemical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Not Applicable

Coastal Erosion, Glacier Erosion, Water Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

1-1.57

1 7

6.1.2 Grain Size

Medium to Fine Coarse Grained

Fine Grained

6.1.3 Fracture

Conchoidal

6.1.4 Streak

Black

6.1.5 Porosity

Less Porous

Highly Porous

6.1.6 Luster

Shiny

Not Available

6.1.7 Compressive Strength

NANA

0.15 450

6.1.8 Cleavage

Non-Existent

Not Available

6.1.9 Toughness

Not Available

1.6

6.1.10 Specific Gravity

1.1-1.4Not Available

0 8.4

6.1.11 Transparency

Opaque

6.1.12 Density

1.25-2.5 g/cm³Not Available

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

Impact 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

India, Russia

7.1.2 Africa

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

South Africa

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, Italy, Scotland, Turkey

7.1.4 Others

Not Yet Found

Greenland

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, Colombia, Venezuela

7.3 Deposits in Oceania Continent

7.3.1 Australia

New South Wales, Queensland, Victoria

New Zealand, Queensland

Anthracite vs Essexite 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 Essexite Reserves. Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster. Essexite which is also known as nepheline monzogabbro, is a dark gray or black holocrystalline plutonic Iigneous Rock. 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 Essexite information and Anthracite vs Essexite characteristics in the upcoming sections.

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Anthracite vs Essexite 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 Essexite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Anthracite and Properties of Essexite . Learn more about Anthracite vs Essexite in the next section. The interior uses of Anthracite include Not yet used whereas the interior uses of Essexite include Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Anthracite and Essexite , 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 Essexite include As dimension stone, Building houses or walls, Cement manufacture, Construction aggregate, For road aggregate.

More about Anthracite and Essexite

Here you can know more about Anthracite and Essexite . The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Anthracite and Essexite consists of mineral content and compound content. The mineral content of Anthracite includes Calcite, Clay, Clay Minerals and mineral content of Essexite includes Augite, Feldspar, Hornblende, Nepheline, Olivine, Plagioclase, Pyroxene. You can also check out the list of all Metamorphic Rocks. When we have to compare Anthracite vs Essexite , 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, Essexite is available in dark grey to black colors. Appearance of Anthracite is Veined or Pebbled and that of Essexite is Banded. Properties of rock is another aspect for Anthracite vs Essexite . The hardness of Anthracite is 1-1.5 and that of Essexite is 7. The types of Anthracite are Semi-anthracite and Meta-anthracite whereas types of Essexite are Not Available. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Anthracite and Essexite is black. The specific heat capacity of Anthracite is 1.32 kJ/Kg K and that of Essexite 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 Essexite is impact resistant, pressure resistant, wear resistant.