Definition
Pantellerite is a peralkaline rhyolite. It has a higher iron and lower aluminium composition than comendite
  
Gritstone or grit is a hard, coarse-grained, siliceous sandstone
  
History
  
  
Origin
Strait of sicily
  
Pennines, England
  
Discoverer
Unknown
  
J.J. Ferber
  
Etymology
From Pantelleria, a volcanic island in the Strait of Sicily
  
From Grit + Stone
  
Class
Igneous Rocks
  
Sedimentary Rocks
  
Sub-Class
Durable Rock, Hard Rock
  
Durable Rock, Hard Rock
  
Family
  
  
Group
Volcanic
  
Not Applicable
  
Other Categories
Fine Grained Rock, Opaque Rock
  
Coarse Grained Rock, Opaque Rock
  
Texture
Eutaxitic
  
Earthy
  
Color
Dark Greenish - Grey
  
Beige, Black, Brown, Colourless, Cream, Dark Brown, Green, Grey, Light Green, Light to Dark Grey, Pink, Red, White, Yellow
  
Maintenance
Less
  
Less
  
Durability
Durable
  
Durable
  
Water Resistant
Yes
  
Yes
  
Scratch Resistant
Yes
  
Yes
  
Stain Resistant
Yes
  
Yes
  
Wind Resistant
Yes
  
Yes
  
Acid Resistant
Yes
  
No
  
Appearance
Layered and Foliated
  
Layered and Foliated
  
Architecture
  
  
Interior Uses
Not Yet Used
  
Countertops, Decorative Aggregates, Homes, Interior Decoration
  
Exterior Uses
Not Yet Used
  
As Building Stone, Garden Decoration, Office Buildings, Paving Stone
  
Other Architectural Uses
Not Yet Used
  
Curbing
  
Industry
  
  
Construction Industry
NA
  
Construction Aggregate, Roadstone
  
Medical Industry
Not Yet Used
  
Not Yet Used
  
Antiquity Uses
Artifacts, Sculpture
  
Artifacts, Monuments, Sculpture
  
Other Uses
  
  
Commercial Uses
Creating Artwork
  
An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO), Tombstones
  
Types
Pantelleritic Ignimbrite
  
Not Available
  
Features
High Fe content
  
Available in Lots of Colors and Patterns, Generally rough to touch, Very fine grained rock
  
Archaeological Significance
  
  
Monuments
Not Yet Used
  
Used
  
Famous Monuments
Not Applicable
  
Data Not Available
  
Sculpture
Not Yet Used
  
Used
  
Famous Sculptures
Not Applicable
  
Data Not Available
  
Pictographs
Not Used
  
Not Used
  
Petroglyphs
Not Used
  
Not Used
  
Figurines
Not Yet Used
  
Used
  
Fossils
Absent
  
Present
  
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.
  
Gritstone is a type of sedimentary rock which was formed on the floors of wide river deltas where the grit deposits were laid down, with every tide or flood dumping another layer of sediment.
  
Composition
  
  
Mineral Content
Amphibole, Feldspar, Ilmenite
  
Calcite, Clay Minerals, Feldspar, Micas, Quartz
  
Compound Content
Al, Fe
  
Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide
  
Transformation
  
  
Metamorphism
Yes
  
No
  
Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism
  
Not Applicable
  
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
  
Physical Properties
  
  
Hardness
6-7
  
6-7
  
Grain Size
Fine Grained
  
Coarse Grained
  
Fracture
Sub-conchoidal
  
Conchoidal
  
Streak
Unknown
  
White
  
Porosity
Less Porous
  
Highly Porous
  
Luster
Earthy
  
Dull
  
Compressive Strength
Not Available
  
70.00 N/mm
2
  
24
Cleavage
Conchoidal
  
Perfect
  
Toughness
2
  
Not Available
  
Specific Gravity
Not Available
  
2.250
  
Transparency
Translucent to Opaque
  
Opaque
  
Density
Not Available
  
2.2 g/cm3
  
Thermal Properties
  
  
Specific Heat Capacity
Not Available
  
0.92 kJ/Kg K
  
10
Resistance
Heat Resistant
  
Heat Resistant, Impact Resistant, Pressure Resistant
  
Deposits in Eastern Continents
  
  
Asia
China, India
  
China, India, Kazakhstan, Mongolia, Russia, Uzbekistan
  
Africa
Angola, Egypt, Madagascar, Namibia, Nigeria
  
Namibia, Nigeria, South Africa
  
Europe
Germany, Iceland, Ireland, Italy, Spain, United Kingdom
  
Austria, Denmark, Germany, Great Britain, Netherlands, Poland, Sweden, Switzerland, United Kingdom
  
Others
Not Yet Found
  
Greenland
  
Deposits in Western Continents
  
  
North America
Canada, USA
  
Canada, USA
  
South America
Argentina, Bolivia, Brazil, Colombia, Ecuador
  
Brazil
  
Deposits in Oceania Continent
  
  
Australia
Central Australia, Queensland, Western Australia
  
New South Wales, New Zealand, Western Australia
  
All about Pantellerite and Gritstone Properties
Know all about Pantellerite and Gritstone properties here. All properties of rocks are important as they define the type of rock and its application. Pantellerite belongs to Igneous Rocks while Gritstone belongs to Sedimentary Rocks.Texture of Pantellerite is Eutaxitic whereas that of Gritstone is Earthy. Pantellerite appears Layered and Foliated and Gritstone appears Layered and Foliated. The luster of Pantellerite is earthy while that of Gritstone is dull. Pantellerite is available in dark greenish - grey colors whereas Gritstone is available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Pantellerite are creating artwork and that of Gritstone are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo), tombstones.