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Rhomb Porphyry
Rhomb Porphyry

Norite
Norite



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Rhomb Porphyry
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Norite

Rhomb Porphyry vs Norite

Definition

Definition

Rhomb-porphyry is a porphyritic igneous rock with abundant wedge or lens shaped anorthoclase or feldspar phenocrysts
Norite is a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine

History

Origin

-
Norway

Discoverer

Unknown
Unknown

Etymology

From Latin term that means purple
From the Norwegian name for Norway, Norge

Class

Igneous Rocks
Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock

Family

Group

Volcanic
Plutonic

Other Categories

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

Texture

Texture

Aphanitic to Porphyritic
Phaneritic

Color

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

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Rough
Veined and Shiny

Uses

Architecture

Interior Uses

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

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

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

Medical Industry

-
-

Antiquity Uses

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

Other Uses

Commercial Uses

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

Types

Types

Igneous rock
Ultramafic intrusive rock

Features

Host Rock for Lead
Smooth to touch

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Absent

Formation

Formation

Rhomb-porphyry 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.
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.

Composition

Mineral Content

Alkali feldspar, Biotite, Plagioclase, Pyroxene
Augite, Olivine, Plagioclase, Pyroxene

Compound Content

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

Transformation

Metamorphism

Types of Metamorphism

Impact Metamorphism
Cataclastic Metamorphism, Impact Metamorphism

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering

Erosion

Types of Erosion

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

Properties

Physical Properties

Hardness

5-5.57
1 7
👆🏻

Grain Size

Fine Grained
Coarse Grained

Fracture

Conchoidal
Conchoidal

Streak

White
Black

Porosity

Very Less Porous
Highly Porous

Luster

Subvitreous to Dull
-

Compressive Strength

310.00 N/mm2225.00 N/mm2
0.15 450
👆🏻

Cleavage

Perfect
-

Toughness

2.7
1.6

Specific Gravity

2.862.86-2.87
0 8.4
👆🏻

Transparency

Translucent
Opaque

Density

2.8-2.9 g/cm32.7-3.3 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.92 kJ/Kg K0.52 kJ/Kg K
0.14 3.2
👆🏻

Resistance

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

Reserves

Deposits in Eastern Continents

Asia

-
India, Russia

Africa

-
South Africa

Europe

Bulgaria
Germany, Greece, Italy, Scotland, Turkey

Others

-
Greenland

Deposits in Western Continents

North America

USA
Canada, USA

South America

-
Brazil, Colombia, Venezuela

Deposits in Oceania Continent

Australia

-
New Zealand, Queensland

Rhomb Porphyry vs Norite 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 Rhomb Porphyry and Norite Reserves. Rhomb-porphyry is a porphyritic igneous rock with abundant wedge or lens shaped anorthoclase or feldspar phenocrysts. Norite is a mafic intrusive igneous rock composed largely of the calcium-rich plagioclase labradorite, orthopyroxene, and olivine. 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 Rhomb Porphyry vs Norite information and Rhomb Porphyry vs Norite characteristics in the upcoming sections.

Rhomb Porphyry vs Norite 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. Rhomb Porphyry vs Norite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Rhomb Porphyry and Properties of Norite. Learn more about Rhomb Porphyry vs Norite in the next section. The interior uses of Rhomb Porphyry include Decorative aggregates, Homes and Interior decoration whereas the interior uses of Norite include Decorative aggregates, Entryways and Interior decoration. Due to some exceptional properties of Rhomb Porphyry and Norite, they have various applications in construction industry. The uses of Rhomb Porphyry in construction industry 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 and that of Norite include As dimension stone, Building houses or walls, Cement manufacture, Construction aggregate, For road aggregate.

More about Rhomb Porphyry and Norite

Here you can know more about Rhomb Porphyry and Norite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Rhomb Porphyry and Norite consists of mineral content and compound content. The mineral content of Rhomb Porphyry includes Alkali feldspar, Biotite, Plagioclase, Pyroxene and mineral content of Norite includes Augite, Olivine, Plagioclase, Pyroxene. You can also check out the list of all Igneous Rocks. When we have to compare Rhomb Porphyry vs Norite, the texture, color and appearance plays an important role in determining the type of rock. Rhomb Porphyry is available in black, brown, green, grey, pink, white colors whereas, Norite is available in dark grey to black colors. Appearance of Rhomb Porphyry is Rough and that of Norite is Veined and Shiny. Properties of rock is another aspect for Rhomb Porphyry vs Norite. The hardness of Rhomb Porphyry is 5-5.5 and that of Norite is 7. The types of Rhomb Porphyry are Igneous rock whereas types of Norite are Ultramafic intrusive rock. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Rhomb Porphyry is white while that of Norite is black. The specific heat capacity of Rhomb Porphyry is 0.92 kJ/Kg K and that of Norite is 0.52 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Rhomb Porphyry is heat resistant, pressure resistant whereas Norite is impact resistant, pressure resistant, wear resistant.