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Tuff Rock

Rocks with Medium Hardness

Slate
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Obsidian
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Marble
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Definition of Tuff. Tuff Definition </>
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Definition of Tuff. Definition
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption
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History describes the place of origin and the discoverer of Tuff. History of Tuff
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Origin is the place where Tuff was first discovered. Origin
Italy
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Name of Tuff discoverer. Discoverer
Unknown
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Study of origin of the word "Tuff". Etymology
From a Latin word tophous then in Italian tufo and finally tuff
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Category of Rocks. Class
Igneous Rocks
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Sub-class of Tuff. Sub-Class
  • Durable Rock
  • Medium Hardness Rock
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Nature of rocks which is either volcanic or plutonic according to its formation process. Tuff Family
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Group of Tuff. It is applicable only to Igneous rocks. Group
Volcanic
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Other categories of Tuff excluding Igneous, Sedimentary and Metamorphic. Other Categories
  • Fine Grained Rock
  • Opaque Rock
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The shape, arrangement and distribution of minerals or grains within Tuff. Tuff Texture </>
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Arrangement and distribution of minerals within rock. Texture
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Clastic texture is applicable to rocks which are composed of fragments, or clasts, of pre-existing minerals.Clastic, 
Pyroclastic
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The colors in which Tuff is available. Tuff Color
Brown, Grey, Yellow
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Maintenance required for Rocks. Maintenance
More
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Ability of Rocks to withstand wear, pressure, or damage. Durability
Durable
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The resistance offered by Tuff on exposure to Water. Water Resistant
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Resistance offered by Tuff to scratches. Scratch Resistant
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Resistance offered by Tuff to stains. Stain Resistant
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Resistance offered by Tuff to wind. Wind Resistant
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Resistance offered by Tuff while reacting with acid. Acid Resistant
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Visual Appearance of Tuff. Appearance
Dull, Vesicular and Foilated
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Uses of Tuff in architecture and construction industry. Tuff Uses </>
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Architectural uses of Tuff. Architecture
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Interior Uses of Tuff which include as Countertops, Decorative Aggregates, Entryways etc. Interior Uses
Decorative Aggregates, Entryways, Flooring, Homes and Interior Decoration
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Exterior Uses of Tuff which include as Building Stone, Garden Decoration etc. Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings and Paving Stone
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Other Architectural Uses of Tuff Other Architectural Uses
Curbing
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Industrial uses of Tuff. Industry
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Uses of Tuff in construction industry. Construction Industry
Building houses or walls, Construction Aggregate
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Uses of Tuff in medical industry. Medical Industry
Not Yet Used
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Rocks used to build buildings and monuments, or work of art like sculptures from the ancient past or used for creating artifacts and jewelry. Antiquity Uses
Artifacts, Monuments, Sculpture and Small Figurines
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Other uses of Tuff. Other Uses
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Other commercial uses of Tuff. Commercial Uses
Creating Artwork
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Types of Tuff. Tuff Types </>
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Types of Tuff. Types
Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff, Andesitic tuff and Ignimbrite.
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Unique features of Tuff. Features
Always found as volcanic pipes over deep continental crust
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The systematic study of historical past human life and culture by the recovery and examination of remaining material evidence like graves, buildings, tools, pottery etc. Archaeological Significance of Tuff
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Buildings, structures, or sites which are build out of various rocks that are of historical importance. Monuments
Used
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Famous Monuments which are built from Tuff. Famous Monuments
Easter Island in the Polynesian Triangle, Pacific Ocean
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Art of making statues or attractive forms by carving rocks or stones. Sculpture
Used
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Famous Sculptures which are carved using Tuff rock. Famous Sculptures
Data Not Available
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Pictographs are paintings or drawings that have been placed on the rock face. Such artworks have typically been made with mineral earths and other natural compounds and they are mostly found in caves, rock shelters and areas with dry climates. Pictographs
Used
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A petroglyph is an image which is carved into a rock. This carving produces a visible indentation in the rock by scratching away the weathered surface to reveal unweathered rock of a different color below. Petroglyphs
Used
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Small statues which represent a human, deity or animal. Figurines are also referred to statuette. Figurines
Used
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Preserved remains of animals, plants and organisms from past. Fossils
Absent
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Formation of Tuff. Formation of Tuff </>
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Process of formation of Tuff rock. 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.
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Composition gives the list of constituents of Tuff. Composition
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Mineral content of Tuff. Mineral Content
Calcite, Chlorite
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Compound content of Tuff. Compound Content
Hydrogen Sulfide, Sulfur Dioxide
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Change in nature, appearance or form of Tuff. Transformation
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Change in form or nature of Tuff. Metamorphism
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List of metamorphism processes which Tuff undergoes. Types of Metamorphism
  • Burial Metamorphism
  • Cataclastic Metamorphism
  • Contact Metamorphism
  • Hydrothermal Metamorphism
  • Impact Metamorphism
  • Regional Metamorphism
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Change in appearance or texture of Tuff due to atmospheric exposure. Weathering
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List of weathering processes which Tuff undergoes. Types of Weathering
  • Biological Weathering
  • Chemical Weathering
  • Mechanical Weathering
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Process of gradual destruction of Tuff by wind, water or other agents. Erosion
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List of erosion processes which Tuff undergoes. Types of Erosion
  • Chemical Erosion
  • Coastal Erosion
  • Glacier Erosion
  • Sea Erosion
  • Water Erosion
  • Wind Erosion
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Thermal and physical properties of Tuff. Properties of Tuff </>
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Properties that are measurable or whose values describe a state of a physical system of Tuff. Physical Properties of Tuff
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Measure of ease with which a smooth surface of a rock can be scratched, or of its resistance to abrasion. It is measured on Moh’s Hardness scale. Hardness
4-6
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Size of individual mineral crystals in Tuff. Grain Size
Fine Grained
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Cracking or breaking of Tuff. Fracture
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Uneven fracture is a rough surface or one with random irregularities.Uneven
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Color of Tuff when powdered. Streak
White
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Porosity of Tuff is the quality of being porous, or full of tiny holes. Porosity
Highly Porous
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Interaction of light with the surface of Tuff. Luster
Vitreous to Dull
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Resistance applied by Rocks to break under compression. Compressive Strength
243.80 N/mm2
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Forms due to deformation and metamorphism in Tuff. Cleavage
Not Available
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Ability to absorb energy and plastically deform without fracturing. Toughness
Not Available
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Ratio of density of Tuff to the density of reference rock. Specific Gravity
2.73
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Degree to which light can pass through a rock. Transparency
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A rock is said to be opaque if it blocks all the rays of light to pass through it.Opaque
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Degree of compactness of a rock. Density
1-1.8 g/cm3
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Properties which describe the response of a rock on the application of heat. Thermal Properties of Tuff
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Amount of heat per unit mass required to raise the temperature by one degree Celsius. Specific Heat Capacity
0.20 kJ/Kg K
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Resistance offered by Tuff against deformation, wear, scratch and heat. Resistance
  • Heat Resistant
  • Impact Resistant
  • Pressure Resistant
  • Wear Resistant
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Reserves of Tuff. Tuff Reserves </>
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Deposits of Tuff in Asia, Africa and Europe which constitute the eastern continents. Tuff Deposits in Eastern Continents
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Deposits of Tuff in Asian continent. 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
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Deposits of Tuff in African continent. Africa
Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda
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Deposits of Tuff in European continent. Europe
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
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List of countries where Tuff deposits are found excluding the 6 continents. Others
Antarctica, Hawaii Islands
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Deposits of Tuff in North and South America which constitute the western continents. Tuff Deposits in Western Continents
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Deposits of Tuff in North American continent. North America
Canada, Costa Rica, Panama, USA
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Deposits of Tuff in South American continent. South America
Argentina, Bolivia, Brazil, Chile, Ecuador, Paraguay
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Deposits of Tuff in Australia which constitute the Oceania continent. Tuff Deposits in Oceania Continent
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Deposits of Tuff in Australian continent. Australia
Central Australia, Western Australia

Information about Tuff

Rocks are naturally occurring solids which are composed of minerals & have been used by humans since ages. From Stone Age, rocks are used for various purposes. Also, the metals and minerals found in rock play an important role in our life. Get to know all the Tuff Uses. We have provided you with all information about Tuff rock here. Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. Tuff is available in brown, grey, yellow colors. The streak of a rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Tuff is white. Get to know more about Tuff rock and characteristics of Tuff rock in the next sections.

Characteristics of Tuff

Many rocks have distinct characteristics. Some of the Properties of Tuff are hardness, structure, streak, fracture etc. Tuff is significant as it is composed of minerals and has variety of uses in our day to day life. The characteristics of Tuff plays an important role in its identification. The hardness of Tuff is 4-6 on Mohโ€™s hardness scale. Rocks according to their hardness are divided into:Types of Hard Rocks, Types of Soft Rocks and Rocks with Medium Hardness. Fracture of Tuff rock is uneven. Its specific heat capacity is 0.20 kJ/Kg K. Tuff is heat resistant, impact resistant, pressure resistant, wear resistant. Some of its uses are:

  • Interior Uses: Decorative aggregates, Entryways, Flooring, Homes and Interior decoration.
  • Construction Industry: Building houses or walls, Construction aggregate.

Know more about Tuff rock in the next section.

More About Tuff

Tuff is a type of Igneous Rocks. The color of rock is one of its important property. Tuff rock is available in brown, grey, yellow colors. It is Dull, Vesicular and Foilated in appearance. The Tuff mineral content includes Calcite, Chlorite. Its compound content includes Hydrogen Sulfide, Sulfur Dioxide. Letโ€™s move on to the types of Tuff. The types of Tuff include Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff, Andesitic tuff and Ignimbrite.. Fossils are the remains of prehistoric plants or animals which are embedded in rock and preserved in petrified form. Fossils are found only in sedimentary rocks. As Tuff belongs to Igneous Rocks, fossils are not found in it.