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Coal
Coal

Quartzite
Quartzite



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Coal vs Quartzite

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Definition

Definition

Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers called coal beds
Quartzite is a non-foliated metamorphic rock that forms by the metamorphism of pure quartz Sandstone

History

Origin

USA
-

Discoverer

John Peter Salley
Unknown

Etymology

From the Old English term col, which has meant mineral of fossilized carbon since the 13th century
From quartz + -ite

Class

Sedimentary Rocks
Metamorphic Rocks

Sub-Class

Durable Rock, Soft Rock
Durable Rock, Hard Rock

Family

Group

-
-

Other Categories

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

Texture

Texture

Amorphous, Glassy
Foliated, Granular

Color

Black, Brown, Dark Brown, Grey, Light to Dark Grey
Black, Blue, Brown, Green, Light Grey, Purple, White, Yellow

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Veined or Pebbled
Lustrous

Uses

Architecture

Interior Uses

-
Countertops, Decorative Aggregates, Flooring, Homes

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
Arrowheads, As Dimension Stone, Cement Manufacture, Construction Aggregate, Cutting Tool, for Road Aggregate, Making natural cement, Production of Glass and Ceramics, Rail Track Ballast, Roadstone

Medical Industry

-
-

Antiquity Uses

Artifacts
Artifacts, Jewellery, Monuments, Sculpture

Other Uses

Commercial Uses

Alumina Refineries, Electricity Generation, Liquid Fuel, Manufacture of Soap, Solvents, Dyes, Plastics and Fibres, Paper Industry
An Oil and Gas Reservoir, As armour rock for sea walls, Cemetery Markers, Commemorative Tablets, In aquifers, Laboratory bench tops, Petroleum reservoirs, Soil Conditioner, Source of Magnesia (MgO), Tombstones, Used in aquariums

Types

Types

Peat, Lignite, Sub-Bituminous Coal, Bituminous Coal, Anthracite, Graphite
Orthoquartzite and Metaquartzite

Features

Helps in production of Heat and Electricity, Used as fossil fuel
Generally rough to touch, Is one of the oldest rock

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Present
Absent

Formation

Formation

Coal forms from the accumulation of plant debris in a swamp environment which is buried by sediments such as mud or sand and then compacted to form coal.
Quartzite forms from sandstone and the mineral quartz being put under extreme heat and pressure.

Composition

Mineral Content

Analcime, Apatite, Barite, Calcite, Chalcopyrite, Chlorite, Chromite, Clausthalite, Clay Minerals, Crandallite Group, Dolomite, Feldspar, Galena, Gypsum, Marcasite, Muscovite or Illite, Pyrite, Quartz, Siderite, Sphalerite, Zircon
Chlorite, Epidote, Hematite, Kyanite, Magnetite, Muscovite or Illite, Quartz

Compound Content

Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur
Aluminium Oxide, CaO, Iron(III) Oxide, MgO, Sodium Oxide, Silicon Dioxide

Transformation

Metamorphism

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Hydrothermal Metamorphism, Regional Metamorphism

Weathering

Types of Weathering

-
Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

Types of Erosion

-
Chemical Erosion, Coastal Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

1-1.56-7
1 7
👆🏻

Grain Size

Medium to Fine Coarse Grained
Medium Grained

Fracture

Conchoidal
Uneven, Splintery or Conchoidal

Streak

Black
White

Porosity

Less Porous
Less Porous

Luster

Dull to Vitreous to Submetallic
Vitreous

Compressive Strength

-115.00 N/mm2
0.15 450
👆🏻

Cleavage

-
Indiscernible

Toughness

-
1.9

Specific Gravity

1.1-1.42.6-2.8
0 8.4
👆🏻

Transparency

Opaque
Transparent to Translucent

Density

1100-1400 g/cm32.32-2.42 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
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam
China, India, Israel, Russia, South Korea, Thailand, Turkey

Africa

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

Europe

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

Others

-
Greenland

Deposits in Western Continents

North America

Canada, Mexico, USA
Bahamas, Canada, USA

South America

Brazil, Chile, Colombia, Venezuela
Brazil, Colombia, Venezuela

Deposits in Oceania Continent

Australia

New South Wales, Queensland, Victoria
New Zealand, Queensland, Western Australia

Coal vs Quartzite 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 Coal and Quartzite Reserves. Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers called coal beds. Quartzite is a non-foliated metamorphic rock that forms by the metamorphism of pure quartz Sandstone. 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 Coal vs Quartzite information and Coal vs Quartzite characteristics in the upcoming sections.

Coal vs Quartzite 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. Coal vs Quartzite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Coal and Properties of Quartzite. Learn more about Coal vs Quartzite in the next section. The interior uses of Coal include whereas the interior uses of Quartzite include Countertops, Decorative aggregates, Flooring and Homes. Due to some exceptional properties of Coal and Quartzite, they have various applications in construction industry. The uses of Coal in construction industry include Cement manufacture, For road aggregate, Making natural cement, Steel production and that of Quartzite include Arrowheads, As dimension stone, Cement manufacture, Construction aggregate, Cutting tool, For road aggregate, Making natural cement, Production of glass and ceramics, Rail track ballast, Roadstone.

More about Coal and Quartzite

Here you can know more about Coal and Quartzite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Coal and Quartzite consists of mineral content and compound content. The mineral content of Coal includes Analcime, Apatite, Barite, Calcite, Chalcopyrite, Chlorite, Chromite, Clausthalite, Clay Minerals, Crandallite Group, Dolomite, Feldspar, Galena, Gypsum, Marcasite, Muscovite or Illite, Pyrite, Quartz, Siderite, Sphalerite, Zircon and mineral content of Quartzite includes Chlorite, Epidote, Hematite, Kyanite, Magnetite, Muscovite or Illite, Quartz. You can also check out the list of all Sedimentary Rocks. When we have to compare Coal vs Quartzite, the texture, color and appearance plays an important role in determining the type of rock. Coal is available in black, brown, dark brown, grey, light to dark grey colors whereas, Quartzite is available in black, blue, brown, green, light grey, purple, white, yellow colors. Appearance of Coal is Veined or Pebbled and that of Quartzite is Lustrous. Properties of rock is another aspect for Coal vs Quartzite. The hardness of Coal is 1-1.5 and that of Quartzite is 6-7. The types of Coal are Peat, Lignite, Sub-Bituminous Coal, Bituminous Coal, Anthracite, Graphite whereas types of Quartzite are Orthoquartzite and Metaquartzite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Coal is black while that of Quartzite is white. The specific heat capacity of Coal is 1.32 kJ/Kg K and that of Quartzite is 0.75 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Coal is heat resistant whereas Quartzite is heat resistant, impact resistant, pressure resistant, wear resistant.