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Norite
Norite

Slate
Slate



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Norite
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Norite vs Slate

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Definition

Definition

Norite is a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine
Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism

History

Origin

Norway
England

Discoverer

Unknown
Abraham Gottlob Werner

Etymology

From the Norwegian name for Norway, Norge
From Old French esclate, from esclat (French éclat)

Class

Igneous Rocks
Metamorphic Rocks

Sub-Class

Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock

Family

Group

Plutonic
-

Other Categories

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

Texture

Texture

Phaneritic
Foliated

Color

Dark Grey to Black
Black, Brown, Buff, Green, Light to Dark Grey, Purple, Red, Shades of Blue

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Veined and Shiny
Dull

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Interior Decoration
Bathrooms, Decorative Aggregates, Entryways, Floor Tiles, Flooring, Homes, Hotels, Interior Decoration, Kitchens, Stair Treads

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate
As Dimension Stone

Medical Industry

-
-

Antiquity Uses

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

Other Uses

Commercial Uses

Cemetery Markers, Commemorative Tablets, Laboratory bench tops, Jewelry, Sea Defence, Tombstones
Blackboards, Commemorative Tablets, Laboratory bench tops, Standard material for the bed of Billiard table, Standard material for the beds of Pool and Snooker table, Tombstones, Used in aquariums, Writing Slates

Types

Types

Ultramafic intrusive rock
Phyllite, Schist, and Slate

Features

Smooth to touch
Easily splits into thin plates, Surfaces are often shiny, Very fine grained rock

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Absent

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.
Slate is a low grade metamorphic rock that is generally formed by metamorphosis of mudstone or shale, under relatively low pressure and temperature conditions.

Composition

Mineral Content

Augite, Olivine, Plagioclase, Pyroxene
Apatite, Biotite, Chlorite, Feldspar, Graphite, Hematite, Kaolinite, Magnetite, Pyrite, Tourmaline, Zircon

Compound Content

Aluminium Oxide, CaO, Chromium(III) Oxide, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Sulfur Trioxide
Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Titanium Dioxide

Transformation

Metamorphism

Types of Metamorphism

Cataclastic Metamorphism, Impact Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism

Weathering

Types of Weathering

Biological Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

Types of Erosion

Chemical Erosion, Coastal Erosion
Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

73-4
1 7
👆🏻

Grain Size

Coarse Grained
Very fine-grained

Fracture

Conchoidal
Splintery

Streak

Black
Light to dark brown

Porosity

Highly Porous
Less Porous

Luster

-
Dull

Compressive Strength

225.00 N/mm230.00 N/mm2
0.15 450
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Cleavage

-
Slaty

Toughness

1.6
1.2

Specific Gravity

2.86-2.872.65-2.8
0 8.4
👆🏻

Transparency

Opaque
Opaque

Density

2.7-3.3 g/cm32.6-2.8 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.52 kJ/Kg K0.76 kJ/Kg K
0.14 3.2
👆🏻

Resistance

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

Reserves

Deposits in Eastern Continents

Asia

India, Russia
China, India, Turkey

Africa

South Africa
-

Europe

Germany, Greece, Italy, Scotland, Turkey
Belgium, France, Germany, Italy, Norway, Portugal, Spain, United Kingdom

Others

Greenland
Arctic

Deposits in Western Continents

North America

Canada, USA
USA

South America

Brazil, Colombia, Venezuela
Brazil

Deposits in Oceania Continent

Australia

New Zealand, Queensland
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Norite vs Slate 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 Slate Reserves. Norite is a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine. Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism. 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 Slate information and Norite vs Slate characteristics in the upcoming sections.

Norite vs Slate 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 Slate characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Norite and Properties of Slate. Learn more about Norite vs Slate in the next section. The interior uses of Norite include Decorative aggregates, Entryways and Interior decoration whereas the interior uses of Slate include Bathrooms, Decorative aggregates, Entryways, Floor tiles, Flooring, Homes, Hotels, Interior decoration, Kitchens and Stair treads. Due to some exceptional properties of Norite and Slate, 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 Slate include As dimension stone.

More about Norite and Slate

Here you can know more about Norite and Slate. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Norite and Slate consists of mineral content and compound content. The mineral content of Norite includes Augite, Olivine, Plagioclase, Pyroxene and mineral content of Slate includes Apatite, Biotite, Chlorite, Feldspar, Graphite, Hematite, Kaolinite, Magnetite, Pyrite, Tourmaline, Zircon. You can also check out the list of all Igneous Rocks. When we have to compare Norite vs Slate, 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, Slate is available in black, brown, buff, green, light to dark grey, purple, red, shades of blue colors. Appearance of Norite is Veined and Shiny and that of Slate is Dull. Properties of rock is another aspect for Norite vs Slate. The hardness of Norite is 7 and that of Slate is 3-4. The types of Norite are Ultramafic intrusive rock whereas types of Slate are Phyllite, Schist, and Slate. 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 Slate is light to dark brown. The specific heat capacity of Norite is 0.52 kJ/Kg K and that of Slate is 0.76 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 Slate is heat resistant, impact resistant, pressure resistant, wear resistant.