Icelandite and Peridotite

Icelandite

Peridotite

Peridotite and Icelandite

Definition

Icelandite belongs to volcanic igneous rocks which is rich in iron and belongs to andesite rock

Peridotite is a dense, coarse-grained plutonic is the main constituent of the earth's mantle

History

Origin

Iceland

Pike County, U.S

Discoverer

Ian S. E. Carmichael

Unknown

Etymology

From its origin place near Cenozoic volcano near the parsonage Þingmúli in East Iceland

From French, from peridot +‎ -ite

Class

Igneous Rocks

Sub-Class

Durable Rock, Hard Rock

Durable Rock, Medium Hardness Rock

Family

Group

Volcanic

Plutonic

Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

Texture

Aphanitic to Porphyritic

Phaneritic

Color

Bluish - Grey, Grey, Pink, Yellow

Dark Greenish - Grey

Maintenance

Less

Durability

Durable

Water Resistant

Yes

Scratch Resistant

Yes

Stain Resistant

Wind Resistant

Yes

Acid Resistant

Appearance

Dull and Soft

Rough and Shiny

Uses

Architecture

Interior Uses

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

Decorative Aggregates, Interior Decoration

Exterior Uses

Office Buildings, Roof Tiles

As Building Stone, As Facing Stone, Garden Decoration

Other Architectural Uses

Curbing

Industry

Construction Industry

Cobblestones, Construction Aggregate, for Road Aggregate

As Dimension Stone, Cobblestones

Medical Industry

Not Yet Used

Antiquity Uses

Artifacts, Jewellery, Sculpture, Small Figurines

Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Cemetery Markers, Creating Artwork

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

Types

Not Available

Dunite, Wehrlite, Harzburgite, Lherzolite and Pyrolite

Features

Generally rough to touch, High silica content, 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

Not Yet Used

Used

Famous Monuments

Not Applicable

Data Not Available

Sculpture

Used

Famous Sculptures

Data Not Available

Pictographs

Not Used

Used

Petroglyphs

Not Used

Used

Figurines

Used

Fossils

Absent

Formation

Icelandite 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.

Peridotites can be formed in two ways: as mantle rocks formed during the accretion and differentiation of the Earth or as cumulate rocks formed by precipitation of olivine and pyroxenes from basaltic magmas.

Composition

Mineral Content

Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite, Magnetite, Plagioclase, Pyroxene, Quartz, Zircon

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

Compound Content

Silicon Dioxide

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

Transformation

Metamorphism

Yes

Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

Yes

Types of Weathering

Biological Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

Yes

Types of Erosion

Chemical Erosion, Coastal Erosion, Sea Erosion, Water Erosion, Wind Erosion

Chemical Erosion

Properties

Physical Properties

Hardness

5.5-6

Grain Size

Very fine-grained

Coarse Grained

Fracture

Uneven

Irregular

Streak

White

Porosity

Less Porous

Luster

Vitreous

Shiny

Compressive Strength

Not Available

107.55 N/mm²

Cleavage

Not Available

Imperfect

Toughness

1.1

2.1

Specific Gravity

2.5-2.8

3-3.01

Transparency

Opaque

Translucent to Opaque

Density

2.11-2.36 g/cm³

3.1-3.4 g/cm³

Thermal Properties

Specific Heat Capacity

2.39 kJ/Kg K

1.26 kJ/Kg K

Resistance

Heat Resistant, Pressure Resistant, Scratch Resistant, Wear Resistant

Heat Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Indonesia, Japan, Nepal, South Korea

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

Africa

Egypt, Ethiopia, Morocco, Namibia, South Africa, Tanzania

Morocco, South Africa

Europe

Austria, Finland, Germany, Italy, Romania, Turkey, United Kingdom

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

Others

Not Yet Found

Deposits in Western Continents

North America

Mexico, USA

Canada, USA

South America

Argentina, Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

Brazil

Deposits in Oceania Continent

Australia

New South Wales, New Zealand, Western Australia

New Zealand, Western Australia

Summary >>

<< Reserves

All about Icelandite and Peridotite Properties

Know all about Icelandite and Peridotite properties here. All properties of rocks are important as they define the type of rock and its application. Icelandite and Peridotite belong to Igneous Rocks.Texture of Icelandite is Aphanitic to Porphyritic whereas that of Peridotite is Phaneritic. Icelandite appears Dull and Soft and Peridotite appears Rough and Shiny. The luster of Icelandite is vitreous while that of Peridotite is shiny. Icelandite is available in bluish - grey, grey, pink, yellow colors whereas Peridotite is available in dark greenish - grey colors. The commercial uses of Icelandite are cemetery markers, creating artwork and that of Peridotite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds.