Peridotite

Borolanite

Peridotite and Borolanite

Peridotite

Borolanite

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Definition

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

Borolanite is a variety of Nepheline Syenite and belongs to igneous rocks and contains nepheline-alkali feldspar pseudomorphs which occur as conspicuous white spots in the dark rock matrix

History

Origin

Pike County, U.S

Scotland

Discoverer

Unknown

Etymology

From French, from peridot +‎ -ite

From Alkalic Igneous complex near Loch Borralan in northwest Scotland

Class

Igneous 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

Granular

Color

Dark Greenish - Grey

Brown, Buff, Cream, Green, Grey, Pink, White

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Rough and Shiny

Banded and Foilated

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration

Countertops, Decorative Aggregates, Flooring, Homes, Interior Decoration

Exterior Uses

As Building Stone, As Facing Stone, Garden Decoration

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

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone, Cobblestones

As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Landscaping, Making natural cement, Manufacture of Magnesium and Dolomite Refractories, Production of Glass and Ceramics

Medical Industry

Antiquity Uses

Monuments, Sculpture, Small Figurines

Artifacts

Other Uses

Commercial Uses

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

Cemetery Markers

Types

Dunite, Wehrlite, Harzburgite, Lherzolite and Pyrolite

Features

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

Application of acids on the surface causes cloudy frosting, Available in Lots of Colors and Patterns, Dissolves in hydrochloric acid, Is one of the oldest rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

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.

Borolanites are formed due to alkaline igneous activities and are generally formed in thick continental crustal areas or in Cordilleran subduction zones.

Composition

Mineral Content

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

Albite, Amphibole, Biotite, Cancrinite, Feldspar, Hornblende, Plagioclase, Pyroxene, Sodalite

Compound Content

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

Aluminium Oxide, CaO, Iron(III) Oxide, FeO, Potassium Oxide, MgO, MnO, Sodium Oxide, Phosphorus Pentoxide, Silicon Dioxide, Titanium Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

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

Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion

Wind Erosion

Properties

Physical Properties

Hardness

5.5-65.5-6

1 7

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Grain Size

Coarse Grained

Fine Grained

Fracture

Irregular

Conchoidal to Uneven

Streak

White

Porosity

Less Porous

Luster

Shiny

Greasy to Dull

Compressive Strength

107.55 N/mm²150.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

2.1

Specific Gravity

3-3.012.6

0 8.4

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Transparency

Translucent to Opaque

Density

3.1-3.4 g/cm³2.6 g/cm³

0 1400

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Thermal Properties

Specific Heat Capacity

1.26 kJ/Kg K0.84 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Impact Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

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

Indonesia, Iran, Russia, Saudi Arabia, Sri Lanka, Taiwan, Thailand, Turkey, Turkmenistan, Vietnam

Africa

Morocco, South Africa

Angola, Egypt, Madagascar, Namibia, Nigeria, South Africa

Europe

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

Andorra, Finland, France, Great Britain, Italy, Norway, Portugal, Spain, Sweden

Others

Greenland

Deposits in Western Continents

North America

Canada, USA

South America

Brazil

Brazil, Chile, Colombia, Uruguay, Venezuela

Deposits in Oceania Continent

Australia

New Zealand, Western Australia

New Zealand, Queensland, South Australia, Tasmania, Western Australia

All about Peridotite and Borolanite Properties

Know all about Peridotite and Borolanite properties here. All properties of rocks are important as they define the type of rock and its application. Peridotite and Borolanite belong to Igneous Rocks.Texture of Peridotite is Phaneritic whereas that of Borolanite is Granular. Peridotite appears Rough and Shiny and Borolanite appears Banded and Foilated. The luster of Peridotite is shiny while that of Borolanite is greasy to dull. Peridotite is available in dark greenish - grey colors whereas Borolanite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Peridotite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds and that of Borolanite are cemetery markers.