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Lherzolite
Lherzolite

Gossan
Gossan



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Lherzolite
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Lherzolite vs Gossan

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Definition

Definition

Lherzolite is a type of ultramafic igneous rock which contains essential olivine and clinopyroxene and orthopyroxene in equal proportions
Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.

History

Origin

France
Indonesia

Discoverer

Unknown
Cornish Gossen

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 Cornish gossen from gos, blood from Old Cornish guit

Class

Igneous Rocks
Metamorphic Rocks

Sub-Class

Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock

Family

Group

Plutonic
-

Other Categories

Fine Grained Rock, Opaque Rock
Fine Grained Rock, Medium Grained Rock, Opaque Rock

Texture

Texture

Grenue
Rough, Sandy

Color

Black, Dark Greenish - Grey, Green, Pink, Purple
Brown, Brown- Black, Gold, Green, Rust

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Glassy, Vesicular and Foilated
Dull and Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Homes, Interior Decoration
Countertops, Decorative Aggregates, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

Landscaping, Manufacture of Magnesium and Dolomite Refractories, Used for flooring, stair treads, borders and window sills.
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate

Medical Industry

-
-

Antiquity Uses

Artifacts, Sculpture
Artifacts

Other Uses

Commercial Uses

As armour rock for sea walls, Source of Magnesia (MgO), Used in aquariums
Cemetery Markers, Commemorative Tablets, Gemstone

Types

Types

Garnet Lherzolite
Translocated gossan and Leakage gossan

Features

Host Rock for Lead
Clasts are smooth to touch, Easily splits into thin plates

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Absent
Absent

Formation

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.
Earth movements can cause rocks to be either deeply buried or squeezed and hence the rocks are heated and put under great pressure.

Composition

Mineral Content

Harzburgite, Olivine, Pyroxene, Pyrrhotite
Apatite, Augite, Biotite, Bronzite, Calcite, Chert, Epidote, Feldspar, Hornblende, Micas, Plagioclase, Pyroxene, Quartz, Sulfides, Zircon

Compound Content

CaO, Cr, Chromium(III) Oxide, MgO
Aluminium Oxide, CaO, Fe, FeO, Silicon Dioxide, Sulphur

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, Sea Erosion, Wind Erosion

Properties

Physical Properties

Hardness

6.54-5
1 7
👆🏻

Grain Size

Fine Grained
Fine to Medium Grained

Fracture

Conchoidal
Conchoidal

Streak

White
White to Grey

Porosity

Less Porous
Highly Porous

Luster

Subvitreous to Dull
Metallic

Compressive Strength

290.00 N/mm2-
0.15 450
👆🏻

Cleavage

Perfect
-

Toughness

2.7
-

Specific Gravity

2.862.0
0 8.4
👆🏻

Transparency

Opaque
Opaque

Density

2.8-2.9 g/cm3-9999 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

0.95 kJ/Kg K0.24 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Impact Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

Russia, South Korea
China, India, Indonesia, Russia, Singapore, South Korea

Africa

Western Africa
Cape Verde, Ethiopia, Ghana, South Africa, Western Africa

Europe

United Kingdom
Albania, France, Germany, Great Britain, United Kingdom

Others

-
-

Deposits in Western Continents

North America

USA
Canada, USA

South America

-
Brazil, Colombia, Ecuador

Deposits in Oceania Continent

Australia

Central Australia, Western Australia
New South Wales, South Australia, Western Australia

Lherzolite vs Gossan Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Lherzolite and Gossan Reserves. Lherzolite is a type of ultramafic igneous rock which contains essential olivine and clinopyroxene and orthopyroxene in equal proportions. Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.. These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Lherzolite vs Gossan information and Lherzolite vs Gossan characteristics in the upcoming sections.

Lherzolite vs Gossan Characteristics

Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Lherzolite vs Gossan characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Lherzolite and Properties of Gossan. Learn more about Lherzolite vs Gossan in the next section. The interior uses of Lherzolite include Decorative aggregates, Entryways, Homes and Interior decoration whereas the interior uses of Gossan include Countertops, Decorative aggregates and Interior decoration. Due to some exceptional properties of Lherzolite and Gossan, they have various applications in construction industry. The uses of Lherzolite in construction industry include Landscaping, Manufacture of magnesium and dolomite refractories, Used for flooring, stair treads, borders and window sills. and that of Gossan include As dimension stone, Cement manufacture, Construction aggregate, For road aggregate.

More about Lherzolite and Gossan

Here you can know more about Lherzolite and Gossan. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Lherzolite and Gossan consists of mineral content and compound content. The mineral content of Lherzolite includes Harzburgite, Olivine, Pyroxene, Pyrrhotite and mineral content of Gossan includes Apatite, Augite, Biotite, Bronzite, Calcite, Chert, Epidote, Feldspar, Hornblende, Micas, Plagioclase, Pyroxene, Quartz, Sulfides, Zircon. You can also check out the list of all Igneous Rocks. When we have to compare Lherzolite vs Gossan, the texture, color and appearance plays an important role in determining the type of rock. Lherzolite is available in black, dark greenish - grey, green, pink, purple colors whereas, Gossan is available in brown, brown- black, gold, green, rust colors. Appearance of Lherzolite is Glassy, Vesicular and Foilated and that of Gossan is Dull and Banded. Properties of rock is another aspect for Lherzolite vs Gossan. The hardness of Lherzolite is 6.5 and that of Gossan is 4-5. The types of Lherzolite are Garnet Lherzolite whereas types of Gossan are Translocated gossan and Leakage gossan. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Lherzolite is white while that of Gossan is white to grey. The specific heat capacity of Lherzolite is 0.95 kJ/Kg K and that of Gossan is 0.24 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Lherzolite is heat resistant, impact resistant, pressure resistant, wear resistant whereas Gossan is heat resistant, impact resistant, pressure resistant.