Cataclasite

Websterite

Cataclasite and Websterite

Cataclasite

Websterite

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1 Definition

1.1 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

Websterite is ultramafic and ultrabasic rock that consists of roughly equal proportions of orthopyroxene and clinopyroxene. It is a special type of pyroxenite.

1.2 History

1.2.1 Origin

Swiss Alps, Europe

Webster, North Carolina

1.2.2 Discoverer

Michael Tellinger

Unknown

1.3 Etymology

From the Italian word cataclasi

From the town of Webster located in North Carolina

1.4 Class

Metamorphic Rocks

Igneous Rocks

1.4.1 Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

1.5 Family

1.5.1 Group

Not Applicable

Plutonic

1.6 Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Clastic

Clastic, Granular, Phaneritic, Porphyritic

2.2 Color

Brown, Green, White, Yellow

Black to Grey, Bluish - Grey, Dark Greenish - Grey, Green, Light Greenish Grey

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

2.4.2 Scratch Resistant

✔ ✘

2.4.3 Stain Resistant

✔ ✘

2.4.4 Wind Resistant

✔ ✘

2.4.5 Acid Resistant

✔ ✘

2.5 Appearance

Dull and Banded

Layered, Banded, Veined and Shiny

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Homes

Countertops, Decorative Aggregates, Entryways, Floor Tiles, Flooring, Interior Decoration

3.1.2 Exterior Uses

As Building Stone, As Facing Stone, Paving Stone

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

3.1.3 Other Architectural Uses

Curbing

3.2 Industry

3.2.1 Construction Industry

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

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts

3.4 Other Uses

3.4.1 Commercial Uses

Commemorative Tablets, Creating Artwork

Cemetery Markers, Commemorative Tablets, Creating Artwork, Laboratory bench tops, Jewelry, Sea Defence, Tombstones

4 Types

4.1 Types

Protocataclasite, Mesocataclasite, Ultracataclasite and Foliated cataclasite

Not Available

4.2 Features

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

Generally rough to touch, Is one of the oldest rock

4.3 Archaeological Significance

4.3.1 Monuments

Not Yet Used

4.3.2 Famous Monuments

Not Applicable

Data Not Available

4.3.3 Sculpture

Not Yet Used

4.3.4 Famous Sculptures

Not Applicable

Data Not Available

4.3.5 Pictographs

Used

Not Used

4.3.6 Petroglyphs

Used

Not Used

4.3.7 Figurines

Not Yet Used

4.4 Fossils

Absent

5 Formation

5.1 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.

Websterite can be formed as cumulates in ultramafic intrusions by accumulation of pyroxene crystals at the base of the lava chamber.

5.2 Composition

5.2.1 Mineral Content

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

Amphibole, Augite, Bronzite, Chromite, Diopside, Enstatite, Garnet, Hornblende, Hypersthene, Magnetite, Pyroxene

5.2.2 Compound Content

Silicon Dioxide

Aluminium Oxide, CaO, Chromium(III) Oxide, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide, Sulfur Trioxide

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Not Applicable

Burial Metamorphism, Impact Metamorphism

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Mechanical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Coastal Erosion, Wind Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

3-47

1 7

1.6.1 Grain Size

Fine Grained

Coarse Grained

1.6.2 Fracture

Uneven

1.6.3 Streak

Black

White, Greenish White or Grey

1.6.4 Porosity

Less Porous

1.6.5 Luster

Vitreous

Dull to Vitreous to Submetallic

1.6.6 Compressive Strength

NANA

0.15 450

1.6.7 Cleavage

Not Available

Irregular

1.6.8 Toughness

Not Available

1.6.9 Specific Gravity

2.13.2-3.5

0 8.4

1.6.10 Transparency

Translucent to Opaque

Opaque

1.6.11 Density

2.9-3.1 g/cm³3.1-3.6 g/cm³

0 1400

1.7 Thermal Properties

1.7.1 Specific Heat Capacity

NANA

0.14 3.2

1.7.2 Resistance

Heat Resistant, Impact Resistant, Pressure Resistant

Impact Resistant, Pressure Resistant, Wear Resistant

2 Reserves

2.1 Deposits in Eastern Continents

2.1.1 Asia

China, India, Russia, Saudi Arabia, South Korea

India, Russia

2.1.2 Africa

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

South Africa

2.1.3 Europe

England, Finland, France, Spain, United Kingdom

Germany, Greece, Italy, Scotland, Turkey

2.1.4 Others

Not Yet Found

Greenland

2.2 Deposits in Western Continents

2.2.1 North America

Canada, USA

2.2.2 South America

Argentina, Colombia

Brazil, Colombia, Venezuela

2.3 Deposits in Oceania Continent

2.3.1 Australia

Central Australia, Western Australia

New Zealand, Queensland

All about Cataclasite and Websterite Properties

Know all about Cataclasite and Websterite properties here. All properties of rocks are important as they define the type of rock and its application. Cataclasite belongs to Metamorphic Rocks while Websterite belongs to Igneous Rocks.Texture of Cataclasite is Clastic whereas that of Websterite is Clastic, Granular, Phaneritic, Porphyritic. Cataclasite appears Dull and Banded and Websterite appears Layered, Banded, Veined and Shiny. The luster of Cataclasite is vitreous while that of Websterite is dull to vitreous to submetallic. Cataclasite is available in brown, green, white, yellow colors whereas Websterite is available in black to grey, bluish - grey, dark greenish - grey, green, light greenish grey colors. The commercial uses of Cataclasite are commemorative tablets, creating artwork and that of Websterite are cemetery markers, commemorative tablets, creating artwork, laboratory bench tops, jewelry, sea defence, tombstones.