Dunite and Jadeitite

Dunite

Jadeitite

Jadeitite and Dunite

Definition

Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine

Jadeitite is a metamorphic rock usually found in blueschist grade metamorphic terrains

History

Origin

New Zealand

Unknown

Discoverer

Ferdinand von Hochstetter

Unknown

Etymology

From the name of Dun Mountain, New Zealand, + -ite1

From pyroxene mineral jadeite

Class

Igneous Rocks

Metamorphic Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Plutonic

Not Applicable

Other Categories

Coarse Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Phaneritic

Earthy

Color

Dark Greenish - Grey

Black, Brown, Colourless, Green, Grey, White

Maintenance

Less

Durability

Durable

Water Resistant

Yes

Scratch Resistant

Yes

Stain Resistant

Yes

Wind Resistant

Acid Resistant

Appearance

Rough and Shiny

Rough and Dull

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration

Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

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

Garden Decoration, Office Buildings, Paving Stone

Other Architectural Uses

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, Cutting Tool, Knives

Medical Industry

Not Yet Used

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts, Jewellery, Monuments, Sculpture

Other Uses

Commercial Uses

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

Commemorative Tablets, Creating Artwork, Jewelry

Types

Not Available

Features

Constitutes upper part of the Earth's mantle, Generally rough to touch, Host rock for Diamond, Is one of the oldest rock

Host Rock for Lead

Archaeological Significance

Monuments

Used

Famous Monuments

Data Not Available

Sculpture

Used

Famous Sculptures

Data Not Available

Pictographs

Used

Petroglyphs

Used

Figurines

Used

Fossils

Absent

Formation

Dunite is a plutonic ultramafic igneous rock consisting almost m olivine. It can be formed in two ways.

Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Jadeitite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.

Composition

Mineral Content

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

Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides

Compound Content

Ca, CaO, Fe, Potassium, Silicon Dioxide, Sodium, Titanium Dioxide

Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur

Transformation

Metamorphism

Yes

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism

Weathering

Yes

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Not Applicable

Erosion

Yes

Types of Erosion

Coastal Erosion, Glacier Erosion, Water Erosion

Coastal Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

3.5-4

3-5

Grain Size

Coarse Grained

Very fine-grained

Fracture

Irregular

Uneven

Streak

White

White, Greenish White or Grey

Porosity

Less Porous

Luster

Shiny

Waxy and Dull

Compressive Strength

107.55 N/mm²

310.00 N/mm²

Cleavage

Imperfect

Irregular

Toughness

2.1

Specific Gravity

3-3.01

2.79-3

Transparency

Translucent to Opaque

Opaque

Density

2.84-2.85 g/cm³

2.5-3 g/cm³

Thermal Properties

Specific Heat Capacity

1.25 kJ/Kg K

0.95 kJ/Kg K

Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Water Resistant

Reserves

Deposits in Eastern Continents

Asia

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

India, Saudi Arabia, Singapore, South Korea

Africa

Morocco, South Africa

Ethiopia, Western Africa

Europe

Finland, France, Georgia, Germany, Great Britain, Italy, Kazakhstan, Netherlands, Norway, Spain, Switzerland, Venezuela

England, Georgia, Switzerland, United Kingdom

Others

Not Yet Found

Deposits in Western Continents

North America

Canada, USA

Canada

South America

Argentina, Brazil, Colombia, Ecuador, Venezuela

Colombia

Deposits in Oceania Continent

Australia

New Zealand, Western Australia

Central Australia, New South Wales, New Zealand, Western Australia

Summary >>

<< Reserves

All about Dunite and Jadeitite Properties

Know all about Dunite and Jadeitite properties here. All properties of rocks are important as they define the type of rock and its application. Dunite belongs to Igneous Rocks while Jadeitite belongs to Metamorphic Rocks.Texture of Dunite is Phaneritic whereas that of Jadeitite is Earthy. Dunite appears Rough and Shiny and Jadeitite appears Rough and Dull. The luster of Dunite is shiny while that of Jadeitite is waxy and dull. Dunite is available in dark greenish - grey colors whereas Jadeitite is available in black, brown, colourless, green, grey, white colors. The commercial uses of Dunite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds and that of Jadeitite are commemorative tablets, creating artwork, jewelry.