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Norite
Norite

Dolomite
Dolomite



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Norite vs Dolomite

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Definition

Definition

Norite is a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine
Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight

History

Origin

Norway
Southern Alps, France

Discoverer

Unknown
Dolomieu

Etymology

From the Norwegian name for Norway, Norge
From French, from the name of Dolomieu (1750–1801), the French geologist who discovered the rock

Class

Igneous Rocks
Sedimentary Rocks

Sub-Class

Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock

Family

Group

Plutonic
-

Other Categories

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

Texture

Texture

Phaneritic
Earthy

Color

Dark Grey to Black
Black, Brown, Green, Grey, Pink, White

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Veined and Shiny
Glassy or Pearly

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Interior Decoration
Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing
-

Industry

Construction Industry

As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate
As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories, Production of Glass and Ceramics, Serves as an Oil and Gas Reservoir rock

Medical Industry

-
Taken as a Supplement for Calcium or Magnesium

Antiquity Uses

Artifacts, Monuments, Sculpture
Artifacts, Jewellery, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Cemetery Markers, Commemorative Tablets, Laboratory bench tops, Jewelry, Sea Defence, Tombstones
An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO)

Types

Types

Ultramafic intrusive rock
Boninite and Jasperoid

Features

Smooth to touch
Host Rock for Lead, Traps for subsurface fluids like Oil and Natural Gas., Zinc and Copper Deposits

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Present

Formation

Formation

Norite 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.
Dolomite rocks are originally deposited as calcite or aragonite rich limestone, but during diagenesis process, the calcite or aragonite is transformed into dolomite.

Composition

Mineral Content

Augite, Olivine, Plagioclase, Pyroxene
Clay Minerals, Pyrite, Quartz, Sulfides

Compound Content

Aluminium Oxide, CaO, Chromium(III) Oxide, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Sulfur Trioxide
NaCl, CaO, Carbon Dioxide, Magnesium Carbonate, MgO

Transformation

Metamorphism

Types of Metamorphism

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

Weathering

Types of Weathering

Biological Weathering
-

Erosion

Types of Erosion

Chemical Erosion, Coastal Erosion
-

Properties

Physical Properties

Hardness

73.5-4
1 7
👆🏻

Grain Size

Coarse Grained
Medium to Fine Coarse Grained

Fracture

Conchoidal
Conchoidal

Streak

Black
White

Porosity

Highly Porous
Less Porous

Luster

-
Vitreous and Pearly

Compressive Strength

225.00 N/mm2140.00 N/mm2
0.15 450
👆🏻

Cleavage

-
Perfect

Toughness

1.6
1

Specific Gravity

2.86-2.872.8-3
0 8.4
👆🏻

Transparency

Opaque
Transparent to Translucent

Density

2.7-3.3 g/cm32.8-2.9 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.52 kJ/Kg K0.92 kJ/Kg K
0.14 3.2
👆🏻

Resistance

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

Reserves

Deposits in Eastern Continents

Asia

India, Russia
China, India

Africa

South Africa
Morocco, Namibia

Europe

Germany, Greece, Italy, Scotland, Turkey
Austria, Italy, Romania, Spain, Switzerland

Others

Greenland
-

Deposits in Western Continents

North America

Canada, USA
Mexico, USA

South America

Brazil, Colombia, Venezuela
Brazil, Colombia

Deposits in Oceania Continent

Australia

New Zealand, Queensland
New South Wales, Queensland, Yorke Peninsula

Norite vs Dolomite 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 Norite and Dolomite Reserves. Norite is a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine. Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight. 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 Norite vs Dolomite information and Norite vs Dolomite characteristics in the upcoming sections.

Norite vs Dolomite 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. Norite vs Dolomite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Norite and Properties of Dolomite. Learn more about Norite vs Dolomite in the next section. The interior uses of Norite include Decorative aggregates, Entryways and Interior decoration whereas the interior uses of Dolomite include Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Norite and Dolomite, they have various applications in construction industry. The uses of Norite in construction industry include As dimension stone, Building houses or walls, Cement manufacture, Construction aggregate, For road aggregate and that of Dolomite include As a flux in the production of steel and pig iron, As a sintering agent in steel industry to process iron ore, As dimension stone, Cement manufacture, For road aggregate, Making natural cement, Manufacture of magnesium and dolomite refractories, Production of glass and ceramics, Serves as an oil and gas reservoir rock.

More about Norite and Dolomite

Here you can know more about Norite and Dolomite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Norite and Dolomite consists of mineral content and compound content. The mineral content of Norite includes Augite, Olivine, Plagioclase, Pyroxene and mineral content of Dolomite includes Clay Minerals, Pyrite, Quartz, Sulfides. You can also check out the list of all Igneous Rocks. When we have to compare Norite vs Dolomite, the texture, color and appearance plays an important role in determining the type of rock. Norite is available in dark grey to black colors whereas, Dolomite is available in black, brown, green, grey, pink, white colors. Appearance of Norite is Veined and Shiny and that of Dolomite is Glassy or Pearly. Properties of rock is another aspect for Norite vs Dolomite. The hardness of Norite is 7 and that of Dolomite is 3.5-4. The types of Norite are Ultramafic intrusive rock whereas types of Dolomite are Boninite and Jasperoid. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Norite is black while that of Dolomite is white. The specific heat capacity of Norite is 0.52 kJ/Kg K and that of Dolomite is 0.92 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Norite is impact resistant, pressure resistant, wear resistant whereas Dolomite is heat resistant, pressure resistant, wear resistant.