Cataclasite

Harzburgite

Cataclasite and Harzburgite

Cataclasite

Harzburgite

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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

Harzburgite is a plutonic rock of the peridotite group consisting largely of orthopyroxene and olivine

History

Origin

Swiss Alps, Europe

Germany

Discoverer

Michael Tellinger

Unknown

Etymology

From the Italian word cataclasi

From the name of a town in Harzburg, Germany

Class

Metamorphic Rocks

Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Plutonic

Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

Texture

Clastic

Phaneritic

Color

Brown, Green, White, Yellow

Dark Greenish - Grey

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull and Banded

Rough and Shiny

Uses

Architecture

Interior Uses

Decorative Aggregates, Homes

Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

As Building Stone, As Facing Stone, Paving Stone

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

Other Architectural Uses

Curbing

Industry

Construction Industry

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

As Dimension Stone, Cobblestones

Medical Industry

Antiquity Uses

Artifacts

Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

Commemorative Tablets, Creating Artwork

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

Types

Protocataclasite, Mesocataclasite, Ultracataclasite and Foliated cataclasite

Ultramafic rock

Features

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

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

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.

Harzburgite 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.

Composition

Mineral Content

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

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

Compound Content

Silicon Dioxide

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

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Impact Metamorphism

Weathering

✔ ✘

Types of Weathering

Mechanical Weathering

Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Coastal Erosion, Wind Erosion

Chemical Erosion, Sea Erosion

Properties

Physical Properties

Hardness

3-45.5-6

1 7

👆🏻

Grain Size

Fine Grained

Coarse Grained

Fracture

Irregular

Streak

Black

White

Porosity

Less Porous

Luster

Vitreous

Shiny

Compressive Strength

50.00 N/mm²150.00 N/mm²

0.15 450

👆🏻

Cleavage

Toughness

2.1

Specific Gravity

2.13-3.01

0 8.4

👆🏻

Transparency

Translucent to Opaque

Density

2.9-3.1 g/cm³3.1-3.4 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K1.25 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant

Heat Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India, Russia, Saudi Arabia, South Korea

Japan, Oman

Africa

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

South Africa

Europe

England, Finland, France, Spain, United Kingdom

France, Germany, Italy

Others

Hawaii Islands, Mid-Atlantic Ridge

Deposits in Western Continents

North America

Canada, USA

South America

Argentina, Colombia

Deposits in Oceania Continent

Australia

Central Australia, Western Australia

All about Cataclasite and Harzburgite Properties

Know all about Cataclasite and Harzburgite properties here. All properties of rocks are important as they define the type of rock and its application. Cataclasite belongs to Metamorphic Rocks while Harzburgite belongs to Igneous Rocks.Texture of Cataclasite is Clastic whereas that of Harzburgite is Phaneritic. Cataclasite appears Dull and Banded and Harzburgite appears Rough and Shiny. The luster of Cataclasite is vitreous while that of Harzburgite is shiny. Cataclasite is available in brown, green, white, yellow colors whereas Harzburgite is available in dark greenish - grey colors. The commercial uses of Cataclasite are commemorative tablets, creating artwork and that of Harzburgite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds.