Cataclasite

Gossan

Cataclasite and Gossan

Cataclasite

Gossan

Add ⊕

Definition

Cataclasite is a type of cataclastic rock that is formed by fracturing and comminution during faulting. It is normally cohesive and non-foliated, consisting of angular clasts in a finer-grained matrix

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

History

Origin

Swiss Alps, Europe

Indonesia

Discoverer

Michael Tellinger

Cornish Gossen

Etymology

From the Italian word cataclasi

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, Opaque Rock

Fine Grained Rock, Medium Grained Rock, Opaque Rock

Texture

Clastic

Rough, Sandy

Color

Brown, Green, White, Yellow

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

Decorative Aggregates, Homes

Countertops, Decorative Aggregates, Interior Decoration

Exterior Uses

As Building Stone, As Facing Stone, Paving Stone

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

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate

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

Medical Industry

Antiquity Uses

Artifacts

Other Uses

Commercial Uses

Commemorative Tablets, Creating Artwork

Cemetery Markers, Commemorative Tablets, Gemstone

Types

Protocataclasite, Mesocataclasite, Ultracataclasite and Foliated cataclasite

Translocated gossan and Leakage gossan

Features

Easily splits into thin plates, Is one of the oldest rock

Clasts are smooth to touch, Easily splits into thin plates

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Formation

Cataclasiste rocks mainly form by pressure deep under the Earth's surface, from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.

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

Albite, Apatite, Augite, Biotite, Calcite, Enstatite, Epidote, Feldspar, Micas, Muscovite or Illite, Pyroxene, Quartz

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

Compound Content

Silicon Dioxide

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

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Weathering

✔ ✘

Types of Weathering

Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Coastal Erosion, Wind Erosion

Chemical Erosion, Sea Erosion, Wind Erosion

Properties

Physical Properties

Hardness

3-44-5

1 7

👆🏻

Grain Size

Fine Grained

Fine to Medium Grained

Fracture

Conchoidal

Streak

Black

White to Grey

Porosity

Less Porous

Highly Porous

Luster

Vitreous

Metallic

Compressive Strength

50.00 N/mm²-

0.15 450

👆🏻

Cleavage

Toughness

Specific Gravity

2.12.0

0 8.4

👆🏻

Transparency

Translucent to Opaque

Opaque

Density

2.9-3.1 g/cm³-9999 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.84 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, Russia, Saudi Arabia, South Korea

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

Africa

Egypt, Ethiopia, Kenya, Madagascar, Morocco, South Africa

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

Europe

England, Finland, France, Spain, United Kingdom

Albania, France, Germany, Great Britain, United Kingdom

Others

Deposits in Western Continents

North America

Canada, USA

South America

Argentina, Colombia

Brazil, Colombia, Ecuador

Deposits in Oceania Continent

Australia

Central Australia, Western Australia

New South Wales, South Australia, Western Australia

All about Cataclasite and Gossan Properties

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