Lherzolite

Oolite

Lherzolite and Oolite

Lherzolite

Oolite

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Definition

Lherzolite is a type of ultramafic igneous rock which contains essential olivine and clinopyroxene and orthopyroxene in equal proportions

Oolite is a sedimentary rock formed from ooids, spherical grains which are composed of concentric layers of calcite

History

Origin

France

Discoverer

Unknown

William Smith

Etymology

From the Lherz Massif, an alpine peridotite complex, at Étang de Lers, near Massat in the French Pyrenees; Lherz is the archaic spelling of this location

From oo- + -lite, after German Oolit. A rock consisting of fine grains of carbonate of lime

Class

Igneous Rocks

Sedimentary Rocks

Sub-Class

Durable Rock, Hard Rock

Durable Rock, Medium Hardness Rock

Family

Group

Plutonic

Volcanic

Other Categories

Fine Grained Rock, Opaque Rock

Texture

Grenue

Clastic or Non-Clastic

Color

Black, Dark Greenish - Grey, Green, Pink, Purple

Black, Blue, Brown, Cream, Green, Grey, Pink, Red, Silver, White, Yellow

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Glassy, Vesicular and Foilated

Rounded and Rough

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Homes, Interior Decoration

Decorative Aggregates, Flooring, Interior Decoration

Exterior Uses

As Building Stone, As Facing Stone, Office Buildings

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

Other Architectural Uses

Curbing

Industry

Construction Industry

Landscaping, Manufacture of Magnesium and Dolomite Refractories, Used for flooring, stair treads, borders and window sills.

Cement Manufacture, Cobblestones, Landscaping

Medical Industry

Antiquity Uses

Artifacts, Sculpture

Artifacts

Other Uses

Commercial Uses

As armour rock for sea walls, Source of Magnesia (MgO), Used in aquariums

Creating Artwork, Jewelry, Used in aquariums

Types

Garnet Lherzolite

Pisolitic Oolite and Oncolitic Oolite

Features

Host Rock for Lead

Available in lots of colors, Generally rough to touch, Very fine grained rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Present

Formation

Lherzolite 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.

Oolites form when layers of calcite are deposited around a sand grain or fossil piece and are rolled around in calm water, which makes them round.

Composition

Mineral Content

Harzburgite, Olivine, Pyroxene, Pyrrhotite

Calcite, Chert, Clay, Dolomite, Quartz, Sand, Silt

Compound Content

CaO, Cr, Chromium(III) Oxide, MgO

Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, FeO, MgO

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Cataclastic Metamorphism, Contact Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Water Erosion, Wind Erosion

Chemical Erosion, Coastal Erosion

Properties

Physical Properties

Hardness

6.53-4

1 7

👆🏻

Grain Size

Fine Grained

Fracture

Conchoidal

Streak

White

Porosity

Less Porous

Luster

Subvitreous to Dull

Pearly to Shiny

Compressive Strength

290.00 N/mm²40.00 N/mm²

0.15 450

👆🏻

Cleavage

Perfect

Toughness

2.7

Specific Gravity

2.86-9999

0 8.4

👆🏻

Transparency

Opaque

Density

2.8-2.9 g/cm³-9999 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.95 kJ/Kg K0.65 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

Russia, South Korea

Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam

Africa

Western Africa

Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe

Europe

United Kingdom

Others

Deposits in Western Continents

North America

USA

South America

Colombia

Deposits in Oceania Continent

Australia

Central Australia, Western Australia

Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula

All about Lherzolite and Oolite Properties

Know all about Lherzolite and Oolite properties here. All properties of rocks are important as they define the type of rock and its application. Lherzolite belongs to Igneous Rocks while Oolite belongs to Sedimentary Rocks.Texture of Lherzolite is Grenue whereas that of Oolite is Clastic or Non-Clastic. Lherzolite appears Glassy, Vesicular and Foilated and Oolite appears Rounded and Rough. The luster of Lherzolite is subvitreous to dull while that of Oolite is pearly to shiny. Lherzolite is available in black, dark greenish - grey, green, pink, purple colors whereas Oolite is available in black, blue, brown, cream, green, grey, pink, red, silver, white, yellow colors. The commercial uses of Lherzolite are as armour rock for sea walls, source of magnesia (mgo), used in aquariums and that of Oolite are creating artwork, jewelry, used in aquariums.