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Tuff and Talc carbonate


Talc carbonate and Tuff


Definition

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.   

History
  
  

Origin
Italy   
China, USA, Middle east   

Discoverer
Unknown   
Unknown   

Etymology
From a Latin word tophous then in Italian tufo and finally tuff   
From medieval Latin, talcum   

Class
Igneous Rocks   
Metamorphic Rocks   

Sub-Class
Durable Rock, Medium Hardness Rock   
Durable Rock, Soft Rock   

Family
  
  

Group
Volcanic   
Not Applicable   

Other Categories
Fine Grained Rock, Opaque Rock   
Fine Grained Rock, Opaque Rock   

Texture

Texture
Clastic, Pyroclastic   
Very Soft   

Color
Brown, Grey, Yellow   
Colourless, Grey, White   

Maintenance
More   
Less   

Durability
Durable   
Durable   

Water Resistant
Yes   
Yes   

Scratch Resistant
Yes   
Yes   

Stain Resistant
No   
No   

Wind Resistant
No   
No   

Acid Resistant
No   
No   

Appearance
Dull, Vesicular and Foilated   
Soft   

Uses

Architecture
  
  

Interior Uses
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration   
Decorative Aggregates, Interior Decoration   

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

Other Architectural Uses
Curbing   
Powder   

Industry
  
  

Construction Industry
Building houses or walls, Construction Aggregate   
Source of calcium   

Medical Industry
Not Yet Used   
Taken as a Supplement for Calcium or Magnesium   

Antiquity Uses
Artifacts, Monuments, Sculpture, Small Figurines   
Artifacts, Jewellery, Monuments, Sculpture, Small Figurines   

Other Uses
  
  

Commercial Uses
Creating Artwork   
Manufacturing of baby powder   

Types

Types
Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff, Andesitic tuff and Ignimbrite.   
Not Available   

Features
Always found as volcanic pipes over deep continental crust   
Easily splits into thin plates, Generally rough to touch, Host Rock for Lead   

Archaeological Significance
  
  

Monuments
Used   
Used   

Famous Monuments
Easter Island in the Polynesian Triangle, Pacific Ocean   
Data Not Available   

Sculpture
Used   
Used   

Famous Sculptures
Data Not Available   
Data Not Available   

Pictographs
Used   
Used   

Petroglyphs
Used   
Not Used   

Figurines
Used   
Used   

Fossils
Absent   
Absent   

Formation

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.   

Composition
  
  

Mineral Content
Calcite, Chlorite   
Carbonate, Chlorite, Magnesium   

Compound Content
Hydrogen Sulfide, Sulfur Dioxide   
CaO, Carbon Dioxide, MgO   

Transformation
  
  

Metamorphism
Yes   
Yes   

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   

Weathering
Yes   
No   

Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering   
Not Applicable   

Erosion
Yes   
No   

Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion   
Not Applicable   

Properties

Physical Properties
  
  

Hardness
4-6   
1-2   

Grain Size
Fine Grained   
Fine Grained   

Fracture
Uneven   
Flat   

Streak
White   
White   

Porosity
Highly Porous   
Less Porous   

Luster
Vitreous to Dull   
Pearly   

Compressive Strength
243.80 N/mm2   
5
250.00 N/mm2   
4

Cleavage
Not Available   
Perfect   

Toughness
Not Available   
1   

Specific Gravity
2.73   
2.86   

Transparency
Opaque   
Translucent   

Density
1-1.8 g/cm3   
2.8-2.9 g/cm3   

Thermal Properties
  
  

Specific Heat Capacity
0.20 kJ/Kg K   
25
0.92 kJ/Kg K   
10

Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant   
Heat Resistant, Wear Resistant   

Reserves

Deposits in Eastern Continents
  
  

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   

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

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

Others
Antarctica, Hawaii Islands   
Not Yet Found   

Deposits in Western Continents
  
  

North America
Canada, Costa Rica, Panama, USA   
Canada, USA   

South America
Argentina, Bolivia, Brazil, Chile, Ecuador, Paraguay   
Argentina, Bolivia, Uruguay   

Deposits in Oceania Continent
  
  

Australia
Central Australia, Western Australia   
Central Australia, South Australia, Western Australia   

Summary >>
<< Reserves

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.

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