Anthracite

Tachylite

Anthracite vs Tachylite

Anthracite

Tachylite

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Definition

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

Tachylite is a vitreous form of basaltic volcanic glass. This glass is formed naturally by the rapid cooling of molten basalt

History

Origin

Pennsylvania, U.S.

Iceland

Discoverer

Unknown

Etymology

From Greek anthrakites, from anthrax, anthrak meaning coal

From German Tachylite, from tachy- + Greek lutos soluble, melting

Class

Metamorphic Rocks

Igneous Rocks

Sub-Class

Durable Rock, Soft Rock

Durable Rock, Medium Hardness Rock

Family

Group

Volcanic

Other Categories

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

Texture

Amorphous, Glassy

Vitreous

Color

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

Black, Dark Brown

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Veined or Pebbled

Glassy

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing

Industry

Construction Industry

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

Cutting Tool, Knives, Landscaping, Scrapers

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

Cemetery Markers, Creating Artwork

Types

Semi-anthracite and Meta-anthracite

Volcanic glass

Features

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

Available in Lots of Colors and Patterns, Clasts are smooth to touch

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

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.

Tachylite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.

Composition

Mineral Content

Calcite, Clay, Clay Minerals

Feldspar, Olivine

Compound Content

Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur

Fe, Mg

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Contact Metamorphism, Regional Metamorphism

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

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Sea Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

1-1.55.5

1 7

👆🏻

Grain Size

Medium to Fine Coarse Grained

Fracture

Conchoidal

Streak

Black

Vermilion

Porosity

Less Porous

Luster

Shiny

Resinous

Compressive Strength

-206.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

Specific Gravity

1.1-1.42.4

0 8.4

👆🏻

Transparency

Opaque

Density

1.25-2.5 g/cm³3.058 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

1.32 kJ/Kg K0.56 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Water Resistant

Heat Resistant, Impact Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

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

Cambodia, Russia, South Korea

Africa

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

East Africa

Europe

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

England, Germany, Hungary, Iceland, Scotland, Sweden

Others

Hawaii Islands

Deposits in Western Continents

North America

Canada, Mexico, USA

USA

South America

Brazil, Chile, Colombia, Venezuela

Deposits in Oceania Continent

Australia

New South Wales, Queensland, Victoria

Victoria

Anthracite vs Tachylite 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 Tachylite Reserves. Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster. Tachylite is a vitreous form of basaltic volcanic glass. This glass is formed naturally by the rapid cooling of molten basalt. 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 Tachylite information and Anthracite vs Tachylite characteristics in the upcoming sections.

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Anthracite vs Tachylite 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 Tachylite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Anthracite and Properties of Tachylite. Learn more about Anthracite vs Tachylite in the next section. The interior uses of Anthracite include whereas the interior uses of Tachylite include Decorative aggregates and Interior decoration. Due to some exceptional properties of Anthracite and Tachylite, 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 Tachylite include Cutting tool, Knives, Landscaping, Scrapers.

More about Anthracite and Tachylite

Here you can know more about Anthracite and Tachylite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Anthracite and Tachylite consists of mineral content and compound content. The mineral content of Anthracite includes Calcite, Clay, Clay Minerals and mineral content of Tachylite includes Feldspar, Olivine. You can also check out the list of all Metamorphic Rocks. When we have to compare Anthracite vs Tachylite, 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, Tachylite is available in black, dark brown colors. Appearance of Anthracite is Veined or Pebbled and that of Tachylite is Glassy. Properties of rock is another aspect for Anthracite vs Tachylite. The hardness of Anthracite is 1-1.5 and that of Tachylite is 5.5. The types of Anthracite are Semi-anthracite and Meta-anthracite whereas types of Tachylite are Volcanic glass. 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 Tachylite is vermilion. The specific heat capacity of Anthracite is 1.32 kJ/Kg K and that of Tachylite is 0.56 kJ/Kg K. 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 Tachylite is heat resistant, impact resistant, wear resistant.