Gossan

Gossan and Gossan

Gossan

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Definition

Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.

History

Origin

Indonesia

Discoverer

Cornish Gossen

Etymology

From Cornish gossen from gos, blood from Old Cornish guit

Class

Metamorphic Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Other Categories

Fine Grained Rock, Medium Grained Rock, Opaque Rock

Texture

Rough, Sandy

Color

Brown, Brown- Black, Gold, Green, Rust

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull and Banded

Uses

Architecture

Interior Uses

Countertops, Decorative Aggregates, Interior Decoration

Exterior Uses

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

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate

Medical Industry

Antiquity Uses

Artifacts

Other Uses

Commercial Uses

Cemetery Markers, Commemorative Tablets, Gemstone

Types

Translocated gossan and Leakage gossan

Features

Clasts are smooth to touch, Easily splits into thin plates

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

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

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

Compound Content

Aluminium Oxide, CaO, Fe, FeO, Silicon Dioxide, Sulphur

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Weathering

✔ ✘

Types of Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Sea Erosion, Wind Erosion

Properties

Physical Properties

Hardness

4-54-5

1 7

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Grain Size

Fine to Medium Grained

Fracture

Conchoidal

Streak

White to Grey

Porosity

Highly Porous

Luster

Metallic

Compressive Strength

0.15 450

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Cleavage

Toughness

Specific Gravity

2.02.0

0 8.4

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Transparency

Opaque

Density

-9999 g/cm³-9999 g/cm³

0 1400

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Thermal Properties

Specific Heat Capacity

0.24 kJ/Kg K0.24 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

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

Africa

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

Europe

Albania, France, Germany, Great Britain, United Kingdom

Others

Deposits in Western Continents

North America

Canada, USA

South America

Brazil, Colombia, Ecuador

Deposits in Oceania Continent

Australia

New South Wales, South Australia, Western Australia

All about Gossan and Gossan Properties

Know all about Gossan and Gossan properties here. All properties of rocks are important as they define the type of rock and its application. Gossan and Gossan belong to Metamorphic Rocks.Texture of Gossan is Rough, Sandy whereas that of Gossan is Rough, Sandy. Gossan appears Dull and Banded and Gossan appears Dull and Banded. The luster of Gossan and Gossan is metallic. Gossan and Gossan are available in brown, brown- black, gold, green, rust colors. The commercial uses of Gossan and Gossan are cemetery markers, commemorative tablets, gemstone.