Tuff

Talc carbonate

Tuff and Talc carbonate

Tuff

Talc carbonate

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1 Definition

1.1 Definition

Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption

Talc carbonate is nothing but a rock sequence or a mineral composition found in metamorphic ultramafic rocks.

1.2 History

1.2.1 Origin

Italy

China, USA, Middle east

1.2.2 Discoverer

Unknown

1.3 Etymology

From a Latin word tophous then in Italian tufo and finally tuff

From medieval Latin, talcum

1.4 Class

Igneous Rocks

Metamorphic Rocks

1.4.1 Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Soft Rock

1.5 Family

1.5.1 Group

Volcanic

Not Applicable

1.6 Other Categories

Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Clastic, Pyroclastic

Very Soft

2.2 Color

Brown, Grey, Yellow

Colourless, Grey, White

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, Vesicular and Foilated

Soft

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration

Decorative Aggregates, Interior Decoration

3.1.2 Exterior Uses

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

Garden Decoration

3.1.3 Other Architectural Uses

Curbing

Powder

3.2 Industry

3.2.1 Construction Industry

Building houses or walls, Construction Aggregate

Source of calcium

3.2.2 Medical Industry

Not Yet Used

Taken as a Supplement for Calcium or Magnesium

3.3 Antiquity Uses

Artifacts, Monuments, Sculpture, Small Figurines

Artifacts, Jewellery, Monuments, Sculpture, Small Figurines

3.4 Other Uses

3.4.1 Commercial Uses

Creating Artwork

Manufacturing of baby powder

4 Types

4.1 Types

Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff, Andesitic tuff and Ignimbrite.

Not Available

4.2 Features

Always found as volcanic pipes over deep continental crust

Easily splits into thin plates, Generally rough to touch, Host Rock for Lead

4.3 Archaeological Significance

4.3.1 Monuments

Used

4.3.2 Famous Monuments

Easter Island in the Polynesian Triangle, Pacific Ocean

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

Not Used

4.3.7 Figurines

Used

4.4 Fossils

Absent

5 Formation

5.1 Formation

Tuff is formed when large masses of ash and sand which are mixed with hot gases are ejected by a volcano and avalanche rapidly down its slopes.

Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Talc Carbonate is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.

5.2 Composition

5.2.1 Mineral Content

Calcite, Chlorite

Carbonate, Chlorite, Magnesium

5.2.2 Compound Content

Hydrogen Sulfide, Sulfur Dioxide

CaO, Carbon Dioxide, MgO

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism

5.3.3 Weathering

✔ ✘

1.1.1 Types of Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Not Applicable

1.1.2 Erosion

✔ ✘

1.2.3 Types of Erosion

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

Not Applicable

2 Properties

2.1 Physical Properties

2.1.1 Hardness

4-61-2

1 7

2.2.7 Grain Size

Fine Grained

2.2.8 Fracture

Uneven

Flat

2.2.9 Streak

White

2.2.10 Porosity

Highly Porous

Less Porous

2.2.11 Luster

Vitreous to Dull

Pearly

2.2.12 Compressive Strength

243.80 N/mm²250.00 N/mm²

0.15 450

1.3.4 Cleavage

Not Available

Perfect

1.3.6 Toughness

Not Available

1.3.8 Specific Gravity

2.732.86

0 8.4

1.3.10 Transparency

Opaque

Translucent

1.3.11 Density

1-1.8 g/cm³2.8-2.9 g/cm³

0 1400

1.4 Thermal Properties

1.4.1 Specific Heat Capacity

0.20 kJ/Kg K0.92 kJ/Kg K

0.14 3.2

1.4.2 Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Heat Resistant, Wear Resistant

2 Reserves

2.1 Deposits in Eastern Continents

2.1.1 Asia

Afghanistan, Armenia, Azerbaijan, Burma, Cambodia, China, India, Indonesia, Iran, Japan, Malaysia, Mongolia, Nepal, North Korea, Pakistan, Saudi Arabia, Syria, Taiwan, Thailand, Turkey, Vietnam, Yemen

Not Yet Found

2.1.2 Africa

Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda

Ethiopia, Ghana, Western Africa

2.1.3 Europe

France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom

England

2.1.4 Others

Antarctica, Hawaii Islands

Not Yet Found

2.2 Deposits in Western Continents

2.2.1 North America

Canada, Costa Rica, Panama, USA

Canada, USA

2.2.2 South America

Argentina, Bolivia, Brazil, Chile, Ecuador, Paraguay

Argentina, Bolivia, Uruguay

2.3 Deposits in Oceania Continent

2.3.1 Australia

Central Australia, Western Australia

Central Australia, South Australia, Western Australia

All about Tuff and Talc carbonate Properties

Know all about Tuff and Talc carbonate properties here. All properties of rocks are important as they define the type of rock and its application. Tuff belongs to Igneous Rocks while Talc carbonate belongs to Metamorphic Rocks.Texture of Tuff is Clastic, Pyroclastic whereas that of Talc carbonate is Very Soft. Tuff appears Dull, Vesicular and Foilated and Talc carbonate appears Soft. The luster of Tuff is vitreous to dull while that of Talc carbonate is pearly. Tuff is available in brown, grey, yellow colors whereas Talc carbonate is available in colourless, grey, white colors. The commercial uses of Tuff are creating artwork and that of Talc carbonate are manufacturing of baby powder.