Definition
Pantellerite is a peralkaline rhyolite. It has a higher iron and lower aluminium composition than comendite
A ganister is a hard, fine-grained quartzose sandstone or orthoquartzite which is basically used in the manufacture of silica brick typically used to line furnaces and is a type of sedimentary rocks.
Origin
Strait of sicily
England
Discoverer
Unknown
Unknown
Etymology
From Pantelleria, a volcanic island in the Strait of Sicily
From gan′is-ter i.e a hard, close-grained siliceous stone, often forming the stratum which underlies a coal-seam
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Hard Rock
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Opaque Rock
Texture
Eutaxitic
Clastic, Granular, Rough
Color
Dark Greenish - Grey
Beige, Black, Brown, Cream, Dark Brown, Green, Grey, Light Green, Light to Dark Grey, Pink, Red, White, Yellow
Durability
Durable
Durable
Scratch Resistant
Yes
Yes
Appearance
Layered and Foliated
Rough
Interior Uses
-
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration
Exterior Uses
-
As Building Stone, Garden Decoration, Office Buildings, Paving Stone
Other Architectural Uses
-
Curbing
Construction Industry
-
Cement Manufacture, Construction Aggregate, for Road Aggregate, Production of Glass and Ceramics, Raw material for the manufacture of mortar
Antiquity Uses
Artifacts, Sculpture
Artifacts, Monuments, Sculpture, Small Figurines
Commercial Uses
Creating Artwork
An Oil and Gas Reservoir, In aquifers, Petroleum reservoirs, Soil Conditioner, Source of Magnesia (MgO), Tombstones
Types
Pantelleritic Ignimbrite
Siliceous rock
Features
High Fe content
Available in Lots of Colors and Patterns, Generally rough to touch, Very fine grained rock
Archaeological Significance
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.
Ganisters are formed by the destruction of easily weathered minerals mainly feldspar, within the surface horizon of soil by soil-forming processes.
Mineral Content
Amphibole, Feldspar, Ilmenite
Calcite, Clay, Clay Minerals, Feldspar, Micas, Quartz
Compound Content
Al, Fe
Aluminium Oxide, CaO, Iron(III) Oxide, Potassium Oxide, MgO, Sodium Oxide, Silicon Dioxide
Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism
-
Types of Weathering
Biological Weathering, Chemical Weathering
Biological Weathering
Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
Water Erosion, Wind Erosion
Grain Size
Fine Grained
Coarse or Fine
Fracture
Sub-conchoidal
Splintery
Porosity
Less Porous
Highly Porous
Cleavage
Conchoidal
Perfect
Specific Gravity
-9999
2.2-2.8
Transparency
Translucent to Opaque
Opaque
Density
-9999 g/cm3
2.2-2.8 g/cm3
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, Norway, Poland, Sweden, Switzerland, United Kingdom
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
All about Pantellerite and Ganister Properties
Know all about Pantellerite and Ganister properties here. All properties of rocks are important as they define the type of rock and its application. Pantellerite belongs to Igneous Rocks while Ganister belongs to Sedimentary Rocks.Texture of Pantellerite is Eutaxitic whereas that of Ganister is Clastic, Granular, Rough. Pantellerite appears Layered and Foliated and Ganister appears Rough. The luster of Pantellerite is earthy while that of Ganister is dull. Pantellerite is available in dark greenish - grey colors whereas Ganister is available in beige, black, brown, 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 Ganister are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones.