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Dunite
Dunite

Lamprophyre
Lamprophyre



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Dunite vs Lamprophyre

Definition

Definition

Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine
Lamprophyre is uncommon igneous rocks primarily occurring as dikes, lopoliths, laccoliths, stocks and small intrusions

History

Origin

New Zealand
Unknown

Discoverer

Ferdinand von Hochstetter
Unknown

Etymology

From the name of Dun Mountain, New Zealand, + -ite1
From Greek lampros bright and shining + porphureos purple

Class

Igneous Rocks
Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock

Family

Group

Plutonic
Plutonic

Other Categories

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

Texture

Texture

Phaneritic
Porphyritic

Color

Dark Greenish - Grey
Black, Bluish - Grey, Brown, Dark Greenish - Grey, Green, Grey

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Rough and Shiny
Dull, Banded and Foilated

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration
Decorative Aggregates, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories

Medical Industry

Not Available
Taken as a Supplement for Calcium or Magnesium

Antiquity Uses

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

Other Uses

Commercial Uses

Creating Artwork, Gemstone, Jewelry, Source of Chromite, Platinum, Nickel and Garnet, Source of Diamonds
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

Not Available
Minette, Alnoite, Camptonite, Monchiquite, Fourchite, Vogesite, Appinite and Spessartite

Features

Constitutes upper part of the Earth's mantle, Generally rough to touch, Host rock for Diamond, Is one of the oldest rock
Always found as volcanic pipes over deep continental crust, Host rock for Diamond, Is one of the oldest rock, Surfaces are often shiny

Archaeological Significance

Monuments

Used
Used

Famous Monuments

Not Available
Not Available

Sculpture

Used
Used

Famous Sculptures

Not Available
Not Available

Pictographs

Used
Used

Petroglyphs

Used
Used

Figurines

Used
Used

Fossils

Absent
Absent

Formation

Formation

Dunite is a plutonic ultramafic igneous rock consisting almost m olivine. It can be formed in two ways.
Lamprophyre formation takes place deep beneath the Earth’s surface at around 150 to 450 kilometres, and are erupted rapidly and violently.

Composition

Mineral Content

Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene
Amphibole, Carbonate, Garnet, Micas, Olivine, Phlogopite, Pyroxene

Compound Content

Ca, CaO, Fe, Potassium, Silicon Dioxide, Sodium, Titanium Dioxide
Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Silicon Dioxide, Titanium Dioxide

Transformation

Metamorphism

Types of Metamorphism

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

Weathering

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering

Erosion

Types of Erosion

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

Properties

Physical Properties

Hardness

3.5-45-6
1 7
👆🏻

Grain Size

Coarse Grained
Fine to Coarse Grained

Fracture

Irregular
Conchoidal

Streak

White
White

Porosity

Less Porous
Very Less Porous

Luster

Shiny
Subvitreous to Dull

Compressive Strength

107.55 N/mm2NA
0.15 450
👆🏻

Cleavage

Not Available
Conchoidal

Toughness

2.1
Not Available

Specific Gravity

3-3.012.86-2.87
0 8.4
👆🏻

Transparency

Translucent to Opaque
Translucent to Opaque

Density

2.84-2.85 g/cm32.95-2.96 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

1.25 kJ/Kg KNA
0.14 3.2
👆🏻

Resistance

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

Reserves

Deposits in Eastern Continents

Asia

China, India, Indonesia, Kazakhstan, Russia, South Korea, Thailand, Turkey
Russia

Africa

Morocco, South Africa
Angola, Botswana, Cameroon, Ethiopia, South Africa

Europe

Finland, France, Georgia, Germany, Great Britain, Italy, Kazakhstan, Netherlands, Norway, Spain, Switzerland
England, Hungary, Iceland, United Kingdom

Others

Not Available
Antarctica, Greenland

Deposits in Western Continents

North America

Canada, USA
Canada, Mexico, USA

South America

Argentina, Brazil, Colombia, Ecuador, Venezuela
Argentina, Colombia, Ecuador

Deposits in Oceania Continent

Australia

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

Dunite vs Lamprophyre 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 Dunite and Lamprophyre Reserves. Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine. Lamprophyre is uncommon igneous rocks primarily occurring as dikes, lopoliths, laccoliths, stocks and small intrusions. 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 Dunite vs Lamprophyre information and Dunite vs Lamprophyre characteristics in the upcoming sections.

Dunite vs Lamprophyre 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. Dunite vs Lamprophyre characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Dunite and Properties of Lamprophyre. Learn more about Dunite vs Lamprophyre in the next section. The interior uses of Dunite include Decorative aggregates and Interior decoration whereas the interior uses of Lamprophyre include Decorative aggregates and Interior decoration. Due to some exceptional properties of Dunite and Lamprophyre, they have various applications in construction industry. The uses of Dunite in construction industry include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate, Making natural cement, Raw material for the manufacture of mortar and that of Lamprophyre include As dimension stone, Cement manufacture, For road aggregate, Making natural cement, Manufacture of magnesium and dolomite refractories.

More about Dunite and Lamprophyre

Here you can know more about Dunite and Lamprophyre. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Dunite and Lamprophyre consists of mineral content and compound content. The mineral content of Dunite includes Amphibole, Chromite, Garnet, Magnesium, Olivine, Phlogopite, Plagioclase, Pyroxene and mineral content of Lamprophyre includes Amphibole, Carbonate, Garnet, Micas, Olivine, Phlogopite, Pyroxene. You can also check out the list of all Igneous Rocks. When we have to compare Dunite vs Lamprophyre, the texture, color and appearance plays an important role in determining the type of rock. Dunite is available in dark greenish - grey colors whereas, Lamprophyre is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors. Appearance of Dunite is Rough and Shiny and that of Lamprophyre is Dull, Banded and Foilated. Properties of rock is another aspect for Dunite vs Lamprophyre. The hardness of Dunite is 3.5-4 and that of Lamprophyre is 5-6. The types of Dunite are Not Available whereas types of Lamprophyre are Minette, Alnoite, Camptonite, Monchiquite, Fourchite, Vogesite, Appinite and Spessartite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Dunite and Lamprophyre is white. The specific heat capacity of Dunite is 1.25 kJ/Kg K and that of Lamprophyre is Not Available. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Dunite is heat resistant, pressure resistant, wear resistant whereas Lamprophyre is heat resistant, impact resistant.