Jaspillite

Dunite

Jaspillite and Dunite

Jaspillite

Dunite

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Definition

Jaspillite is an iron rich chemically formed rock which is common in banded iron formation rocks

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

History

Origin

Western Australia, Minnesota

New Zealand

Discoverer

Unknown

Ferdinand von Hochstetter

Etymology

From Jaspilite (Mineral), a compact siliceous rock which resembles jasper

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

Class

Sedimentary Rocks

Igneous Rocks

Sub-Class

Durable Rock, Soft Rock

Durable Rock, Medium Hardness Rock

Family

Group

Plutonic

Other Categories

Coarse Grained Rock, Opaque Rock

Texture

Banded, Trellis

Phaneritic

Color

Red, Reddish Brown

Dark Greenish - Grey

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Banded and Glassy

Rough and Shiny

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration

Exterior Uses

As Facing Stone, Garden Decoration, Paving Stone

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

Other Architectural Uses

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, Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar

Medical Industry

Antiquity Uses

Artifacts, Jewellery, Monuments

Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Creating Artwork, Jewelry

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

Types

Algoma-type , Lake Superior-type and Superior-type

Dunite

Features

Is one of the oldest rock

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

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Present

Absent

Formation

Jaspillite is a type of sedimentary rock which is formed by the compaction and sedimentation of pieces of broken or weathered rocks and minerals.

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

Composition

Mineral Content

Coesite, Quartz, Sand

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

Compound Content

Fe, Iron(III) Oxide, Silicon Dioxide

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

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion

Coastal Erosion, Glacier Erosion, Water Erosion

Properties

Physical Properties

Hardness

33.5-4

1 7

👆🏻

Grain Size

Large and Coarse Grained

Coarse Grained

Fracture

Conchoidal

Irregular

Streak

White

Porosity

Very Less Porous

Less Porous

Luster

Earthy

Shiny

Compressive Strength

230.00 N/mm²107.55 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

2.1

Specific Gravity

5.0-5.33-3.01

0 8.4

👆🏻

Transparency

Translucent to Opaque

Density

0-5.7 g/cm³2.84-2.85 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

3.20 kJ/Kg K1.25 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant, Wear Resistant

Heat Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

Russia

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

Africa

Morocco, South Africa

Europe

Ukraine

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

Others

Deposits in Western Continents

North America

Canada, USA

South America

Brazil

Argentina, Brazil, Colombia, Ecuador, Venezuela

Deposits in Oceania Continent

Australia

Western Australia

New Zealand, Western Australia

All about Jaspillite and Dunite Properties

Know all about Jaspillite and Dunite properties here. All properties of rocks are important as they define the type of rock and its application. Jaspillite belongs to Sedimentary Rocks while Dunite belongs to Igneous Rocks.Texture of Jaspillite is Banded, Trellis whereas that of Dunite is Phaneritic. Jaspillite appears Banded and Glassy and Dunite appears Rough and Shiny. The luster of Jaspillite is earthy while that of Dunite is shiny. Jaspillite is available in red, reddish brown colors whereas Dunite is available in dark greenish - grey colors. The commercial uses of Jaspillite are creating artwork, jewelry and that of Dunite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds.