Cataclasite

Lignite

Cataclasite and Lignite

Cataclasite

Lignite

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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

Lignite is a soft brownish coal which shows traces of plants and is intermediate between bituminous coal and peat

History

Origin

Swiss Alps, Europe

France

Discoverer

Michael Tellinger

Unknown

Etymology

From the Italian word cataclasi

From French, Latin lignum wood + -ite1

Class

Metamorphic Rocks

Sedimentary Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Soft Rock

Family

Group

Other Categories

Fine Grained Rock, Opaque Rock

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

Texture

Clastic

Amorphous, Glassy

Color

Brown, Green, White, Yellow

Black, Brown, Dark Brown, Grey, Light to Dark Grey

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull and Banded

Veined or Pebbled

Uses

Architecture

Interior Uses

Decorative Aggregates, Homes

Exterior Uses

As Building Stone, As Facing Stone, Paving Stone

Other Architectural Uses

Curbing

Industry

Construction Industry

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

for Road Aggregate, Steel Production

Medical Industry

Antiquity Uses

Artifacts

Other Uses

Commercial Uses

Commemorative Tablets, Creating Artwork

Electricity Generation

Types

Protocataclasite, Mesocataclasite, Ultracataclasite and Foliated cataclasite

Xyloid Lignite or Fossil Wood and Compact Lignite or Perfect Lignite

Features

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

Generally rough to touch, Helps in production of Heat and Electricity, Used as fossil fuel

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Present

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.

Coal formation takes place due to accumulation of plant debris in a swamp environment. The Coal formation process continues, as peat turns into lignite brown or black coal at increasing heat and pressure.

Composition

Mineral Content

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

Compound Content

Silicon Dioxide

Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Weathering

✔ ✘

Types of Weathering

Mechanical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Coastal Erosion, Wind Erosion

Chemical Erosion, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

3-41

1 7

👆🏻

Grain Size

Fine Grained

Medium to Fine Coarse Grained

Fracture

Conchoidal

Streak

Black

Porosity

Less Porous

Highly Porous

Luster

Vitreous

Dull to Vitreous to Submetallic

Compressive Strength

50.00 N/mm²-

0.15 450

👆🏻

Cleavage

Toughness

Specific Gravity

2.11.1-1.4

0 8.4

👆🏻

Transparency

Translucent to Opaque

Opaque

Density

2.9-3.1 g/cm³800-801 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

0.84 kJ/Kg K1.26 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant

Heat Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India, Russia, Saudi Arabia, South Korea

Bangladesh, Burma, Cambodia, China, India, Indonesia, Kazakhstan, Malaysia, Mongolia, Pakistan, Turkey, Vietnam

Africa

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

Botswana, Kenya, Morocco, Mozambique, South Africa, Tanzania

Europe

England, Finland, France, Spain, United Kingdom

Belgium, Bulgaria, England, France, Germany, Greece, Hungary, Kosovo, Netherlands, Norway, Poland, Romania, Serbia, Slovakia, Slovenia, The Czech Republic, Ukraine, United Kingdom

Others

Deposits in Western Continents

North America

Canada, USA

Canada, Mexico, USA

South America

Argentina, Colombia

Brazil, Chile, Colombia, Venezuela

Deposits in Oceania Continent

Australia

Central Australia, Western Australia

New South Wales, Queensland, Victoria

All about Cataclasite and Lignite Properties

Know all about Cataclasite and Lignite properties here. All properties of rocks are important as they define the type of rock and its application. Cataclasite belongs to Metamorphic Rocks while Lignite belongs to Sedimentary Rocks.Texture of Cataclasite is Clastic whereas that of Lignite is Amorphous, Glassy. Cataclasite appears Dull and Banded and Lignite appears Veined or Pebbled. The luster of Cataclasite is vitreous while that of Lignite is dull to vitreous to submetallic. Cataclasite is available in brown, green, white, yellow colors whereas Lignite is available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Cataclasite are commemorative tablets, creating artwork and that of Lignite are electricity generation.