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Quartzite
Quartzite

Coal
Coal



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Quartzite
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Coal

Quartzite vs Coal

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Definition

Definition

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

History

Origin

-
USA

Discoverer

Unknown
John Peter Salley

Etymology

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

Class

Metamorphic Rocks
Sedimentary Rocks

Sub-Class

Durable Rock, Hard Rock
Durable Rock, Soft Rock

Family

Group

-
-

Other Categories

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

Texture

Texture

Foliated, Granular
Amorphous, Glassy

Color

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

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Lustrous
Veined or Pebbled

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

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

Medical Industry

-
-

Antiquity Uses

Artifacts, Jewellery, Monuments, Sculpture
Artifacts

Other Uses

Commercial Uses

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

Types

Types

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

Features

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

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Present

Formation

Formation

Quartzite forms from sandstone and the mineral quartz being put under extreme heat and pressure.
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.

Composition

Mineral Content

Chlorite, Epidote, Hematite, Kyanite, Magnetite, Muscovite or Illite, Quartz
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

Compound Content

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

Transformation

Metamorphism

Types of Metamorphism

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

6-71-1.5
1 7
👆🏻

Grain Size

Medium Grained
Medium to Fine Coarse Grained

Fracture

Uneven, Splintery or Conchoidal
Conchoidal

Streak

White
Black

Porosity

Less Porous
Less Porous

Luster

Vitreous
Dull to Vitreous to Submetallic

Compressive Strength

115.00 N/mm2-
0.15 450
👆🏻

Cleavage

Indiscernible
-

Toughness

1.9
-

Specific Gravity

2.6-2.81.1-1.4
0 8.4
👆🏻

Transparency

Transparent to Translucent
Opaque

Density

2.32-2.42 g/cm31100-1400 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.75 kJ/Kg K1.32 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Heat Resistant

Reserves

Deposits in Eastern Continents

Asia

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

Africa

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

Europe

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

Others

Greenland
-

Deposits in Western Continents

North America

Bahamas, Canada, USA
Canada, Mexico, USA

South America

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

Deposits in Oceania Continent

Australia

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

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

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

More about Quartzite and Coal

Here you can know more about Quartzite and Coal. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Quartzite and Coal consists of mineral content and compound content. The mineral content of Quartzite includes Chlorite, Epidote, Hematite, Kyanite, Magnetite, Muscovite or Illite, Quartz and 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. You can also check out the list of all Metamorphic Rocks. When we have to compare Quartzite vs Coal, the texture, color and appearance plays an important role in determining the type of rock. Quartzite is available in black, blue, brown, green, light grey, purple, white, yellow colors whereas, Coal is available in black, brown, dark brown, grey, light to dark grey colors. Appearance of Quartzite is Lustrous and that of Coal is Veined or Pebbled. Properties of rock is another aspect for Quartzite vs Coal. The hardness of Quartzite is 6-7 and that of Coal is 1-1.5. The types of Quartzite are Orthoquartzite and Metaquartzite whereas types of Coal are Peat, Lignite, Sub-Bituminous Coal, Bituminous Coal, Anthracite, Graphite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Quartzite is white while that of Coal is black. The specific heat capacity of Quartzite is 0.75 kJ/Kg K and that of Coal 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.Quartzite is heat resistant, impact resistant, pressure resistant, wear resistant whereas Coal is heat resistant.