Pantellerite and Tuff
Definition
Definition
Pantellerite is a peralkaline rhyolite. It has a higher iron and lower aluminium composition than comendite
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption
History
Origin
Strait of sicily
Italy
Discoverer
Unknown
Unknown
Etymology
From Pantelleria, a volcanic island in the Strait of Sicily
From a Latin word tophous then in Italian tufo and finally tuff
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
Volcanic
Volcanic
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
Texture
Texture
Eutaxitic
Clastic, Pyroclastic
Color
Dark Greenish - Grey
Brown, Grey, Yellow
Maintenance
Less
More
Durability
Durable
Durable
Water Resistant
Yes
Yes
Scratch Resistant
Yes
Yes
Stain Resistant
Yes
No
Wind Resistant
Yes
No
Acid Resistant
Yes
No
Appearance
Layered and Foliated
Dull, Vesicular and Foilated
Uses
Architecture
Interior Uses
Not Yet Used
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration
Exterior Uses
Not Yet Used
As Building Stone, As Facing Stone, Garden Decoration, Office Buildings, Paving Stone
Other Architectural Uses
Not Yet Used
Curbing
Industry
Construction Industry
NA
Building houses or walls, Construction Aggregate
Medical Industry
Not Yet Used
Not Yet Used
Antiquity Uses
Artifacts, Sculpture
Artifacts, Monuments, Sculpture, Small Figurines
Other Uses
Commercial Uses
Creating Artwork
Creating Artwork
Types
Types
Pantelleritic Ignimbrite
Welded tuff, Rhyolitic tuff, Basaltic tuff, Trachyte tuff, Andesitic tuff and Ignimbrite.
Features
High Fe content
Always found as volcanic pipes over deep continental crust
Archaeological Significance
Monuments
Not Yet Used
Used
Famous Monuments
Not Applicable
Easter Island in the Polynesian Triangle, Pacific Ocean
Sculpture
Not Yet Used
Used
Famous Sculptures
Not Applicable
Data Not Available
Pictographs
Not Used
Used
Petroglyphs
Not Used
Used
Figurines
Not Yet Used
Used
Fossils
Absent
Absent
Formation
Formation
Pantellerite is a fine-grained, hard rock which is a type of metasomatite, essentially altered basalt. It forms with or without crystallization, either below the surface as intrusive rocks or on the surface as extrusive rocks.
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.
Composition
Mineral Content
Amphibole, Feldspar, Ilmenite
Calcite, Chlorite
Compound Content
Al, Fe
Hydrogen Sulfide, Sulfur Dioxide
Transformation
Metamorphism
Yes
Yes
Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism
Weathering
Yes
Yes
Types of Weathering
Biological Weathering, Chemical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Erosion
Yes
Yes
Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
Properties
Physical Properties
Hardness
6-7
4-6
Grain Size
Fine Grained
Fine Grained
Fracture
Sub-conchoidal
Uneven
Streak
Unknown
White
Porosity
Less Porous
Highly Porous
Luster
Earthy
Vitreous to Dull
Compressive Strength
Not Available
243.80 N/mm2
5
Cleavage
Conchoidal
Not Available
Toughness
2
Not Available
Specific Gravity
Not Available
2.73
Transparency
Translucent to Opaque
Opaque
Density
Not Available
1-1.8 g/cm3
Thermal Properties
Specific Heat Capacity
Not Available
0.20 kJ/Kg K
25
Resistance
Heat Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Reserves
Deposits in Eastern Continents
Asia
China, India
Afghanistan, Armenia, Azerbaijan, Burma, Cambodia, China, India, Indonesia, Iran, Japan, Malaysia, Mongolia, Nepal, North Korea, Pakistan, Saudi Arabia, Syria, Taiwan, Thailand, Turkey, Vietnam, Yemen
Africa
Angola, Egypt, Madagascar, Namibia, Nigeria
Cameroon, Cape Verde, Eritrea, Ethiopia, Kenya, Libya, Madagascar, Nigeria, Rwanda, South Africa, Sudan, Uganda
Europe
Germany, Iceland, Ireland, Italy, Spain, United Kingdom
France, Georgia, Germany, Greece, Iceland, Italy, Netherlands, Poland, Portugal, Spain, United Kingdom
Others
Not Yet Found
Antarctica, Hawaii Islands
Deposits in Western Continents
North America
Canada, USA
Canada, Costa Rica, Panama, USA
South America
Argentina, Bolivia, Brazil, Colombia, Ecuador
Argentina, Bolivia, Brazil, Chile, Ecuador, Paraguay
Deposits in Oceania Continent
Australia
Central Australia, Queensland, Western Australia
Central Australia, Western Australia
All about Pantellerite and Tuff Properties
Know all about Pantellerite and Tuff properties here. All properties of rocks are important as they define the type of rock and its application. Pantellerite and Tuff belong to Igneous Rocks.Texture of Pantellerite is Eutaxitic whereas that of Tuff is Clastic, Pyroclastic. Pantellerite appears Layered and Foliated and Tuff appears Dull, Vesicular and Foilated. The luster of Pantellerite is earthy while that of Tuff is vitreous to dull. Pantellerite is available in dark greenish - grey colors whereas Tuff is available in brown, grey, yellow colors. The commercial uses of Pantellerite and Tuff are creating artwork.
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