Claystone

Chalk

Claystone and Chalk

Claystone

Chalk

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1 Definition

1.1 Definition

Claystone is a fine-grained, dark gray to pink sedimentary rock which mainly consists of compacted and hardened clay

Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers

1.2 History

1.2.1 Origin

Unknown

1.2.2 Discoverer

Unknown

1.3 Etymology

From English clay and stone as the rock contains more amount of clay

From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone

1.4 Class

Sedimentary Rocks

1.4.1 Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Soft Rock

1.5 Family

1.5.1 Group

Not Applicable

1.6 Other Categories

Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Clastic

Clastic or Non-Clastic

2.2 Color

Black, Blue, Brown, Green, Grey, Orange, Red, White, Yellow

Grey, White, Yellow

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

Rough and Dull

Soft

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Entryways, Floor Tiles, Homes, Interior Decoration

Decorative Aggregates, Homes, Interior Decoration

3.1.2 Exterior Uses

As Facing Stone, Roof Tiles

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

3.1.3 Other Architectural Uses

Curbing

Powder

3.2 Industry

3.2.1 Construction Industry

As a Sintering Agent in Steel Industry to process Iron Ore, Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar

As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, raw material for manufacture of quicklime and slaked lime, Source of calcium

3.2.2 Medical Industry

Not Yet Used

3.3 Antiquity Uses

Artifacts, Sculpture, Small Figurines

Artifacts, Monuments, Sculpture, Small Figurines

3.4 Other Uses

3.4.1 Commercial Uses

Pottery

Alumina Refineries, Creating Artwork, Drawing on blackboards, Gymnasts, athletes and mountain climbers use for grip, In aquifers, Paper Industry, Production of Lime, Raw material for manufacture of quicklime, slaked lime, Soil Conditioner, Whiting, Whiting material in toothpaste, paint and paper

4 Types

4.1 Types

Not Available

4.2 Features

Available in Lots of Colors and Patterns, Smooth to touch, Very fine grained rock

Clasts are smooth to touch, Is one of the oldest rock, Smooth to touch, Very fine grained rock

4.3 Archaeological Significance

4.3.1 Monuments

Not Yet Used

Used

4.3.2 Famous Monuments

Not Applicable

Data Not Available

4.3.3 Sculpture

Used

4.3.4 Famous Sculptures

Data Not Available

4.3.5 Pictographs

Used

4.3.6 Petroglyphs

Used

4.3.7 Figurines

Used

4.4 Fossils

Present

5 Formation

5.1 Formation

Claystone is generally quite soft, but can be hard and brittle. It forms due to weathering of mudstone.

Chalk is formed from lime mud, which accumulates on the sea floor which is then transformed into rock by geological processes.

5.2 Composition

5.2.1 Mineral Content

Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz

Calcite, Clay, Clay Minerals, Quartz, Sand

5.2.2 Compound Content

Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, MgO, Silicon Dioxide

Ca, NaCl, CaO

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Not Applicable

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Biological Weathering, Chemical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Coastal Erosion, Water Erosion

Chemical Erosion, Coastal Erosion, Water Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

3.5-41

1 7

6.1.2 Grain Size

Fine Grained

Very fine-grained

6.1.3 Fracture

Not Available

6.1.4 Streak

White

6.1.5 Porosity

Very Less Porous

Highly Porous

6.1.6 Luster

Dull

6.1.7 Compressive Strength

NANA

0.15 450

6.1.8 Cleavage

Perfect

Non-Existent

6.1.9 Toughness

2.6

6.1.10 Specific Gravity

02.3-2.4

0 8.4

6.1.11 Transparency

Opaque

6.1.12 Density

2-2.9 g/cm³2.49-2.50 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

0.92 kJ/Kg K0.90 kJ/Kg K

0.14 3.2

6.2.2 Resistance

Heat Resistant, Impact Resistant

Heat Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

Bangladesh, China, India, Russia

Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam

7.1.2 Africa

Ethiopia, Kenya, Morocco, South Africa, Tanzania

Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe

7.1.3 Europe

Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland

England, France, Germany, Spain, United Kingdom

7.1.4 Others

Not Yet Found

7.2 Deposits in Western Continents

7.2.1 North America

Canada, Panama, USA

Canada, USA

7.2.2 South America

Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela

Colombia

7.3 Deposits in Oceania Continent

7.3.1 Australia

New South Wales, New Zealand, Queensland, Victoria, Western Australia

Adelaide, New Zealand, Queensland, Tonga, Victoria, Yorke Peninsula

All about Claystone and Chalk Properties

Know all about Claystone and Chalk properties here. All properties of rocks are important as they define the type of rock and its application. Claystone and Chalk belong to Sedimentary Rocks.Texture of Claystone is Clastic whereas that of Chalk is Clastic or Non-Clastic. Claystone appears Rough and Dull and Chalk appears Soft. The luster of Claystone and Chalk is dull. Claystone and Chalk are available in black, blue, brown, green, grey, orange, red, white, yellow colors. The commercial uses of Claystone are pottery and that of Chalk are alumina refineries, creating artwork, drawing on blackboards, gymnasts, athletes and mountain climbers use for grip, in aquifers, paper industry, production of lime, raw material for manufacture of quicklime, slaked lime, soil conditioner, whiting, whiting material in toothpaste, paint and paper.