Dunite

Claystone

Dunite and Claystone

Dunite

Claystone

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Definition

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

Claystone is a fine-grained, dark gray to pink sedimentary rock which mainly consists of compacted and hardened clay

History

Origin

New Zealand

Discoverer

Ferdinand von Hochstetter

Unknown

Etymology

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

From English clay and stone as the rock contains more amount of clay

Class

Igneous Rocks

Sedimentary Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Plutonic

Other Categories

Coarse Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Phaneritic

Clastic

Color

Dark Greenish - Grey

Black, Blue, Brown, Green, Grey, Orange, Red, White, Yellow

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Rough and Shiny

Rough and Dull

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration

Decorative Aggregates, Entryways, Floor Tiles, Homes, Interior Decoration

Exterior Uses

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

As Facing Stone, Roof Tiles

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 a Sintering Agent in Steel Industry to process Iron Ore, Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar

Medical Industry

Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts, Sculpture, Small Figurines

Other Uses

Commercial Uses

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

Pottery

Types

Dunite

Claystone

Features

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

Available in Lots of Colors and Patterns, Smooth to touch, Very fine grained rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Present

Formation

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

Claystone is generally quite soft, but can be hard and brittle. It forms due to weathering of mudstone.

Composition

Mineral Content

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

Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz

Compound Content

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

Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, MgO, Silicon Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Coastal Erosion, Glacier Erosion, Water Erosion

Coastal Erosion, Water Erosion

Properties

Physical Properties

Hardness

3.5-43.5-4

1 7

👆🏻

Grain Size

Coarse Grained

Fine Grained

Fracture

Irregular

Streak

White

Porosity

Less Porous

Very Less Porous

Luster

Shiny

Dull

Compressive Strength

107.55 N/mm²40.00 N/mm²

0.15 450

👆🏻

Cleavage

Perfect

Toughness

2.1

2.6

Specific Gravity

3-3.010

0 8.4

👆🏻

Transparency

Translucent to Opaque

Opaque

Density

2.84-2.85 g/cm³2-2.9 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

1.25 kJ/Kg K0.92 kJ/Kg K

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

Bangladesh, China, India, Russia

Africa

Morocco, South Africa

Ethiopia, Kenya, Morocco, South Africa, Tanzania

Europe

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

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

Others

Deposits in Western Continents

North America

Canada, USA

Canada, Panama, USA

South America

Argentina, Brazil, Colombia, Ecuador, Venezuela

Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

Deposits in Oceania Continent

Australia

New Zealand, Western Australia

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

All about Dunite and Claystone Properties

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