Definition
Pantellerite is a peralkaline rhyolite. It has a higher iron and lower aluminium composition than comendite
Oolite is a sedimentary rock formed from ooids, spherical grains which are composed of concentric layers of calcite
History
Origin
Strait of sicily
-
Discoverer
Unknown
William Smith
Etymology
From Pantelleria, a volcanic island in the Strait of Sicily
From oo- + -lite, after German Oolit. A rock consisting of fine grains of carbonate of lime
Class
Igneous Rocks
Sedimentary 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
Eutaxitic
Clastic or Non-Clastic
Color
Dark Greenish - Grey
Black, Blue, Brown, Cream, Green, Grey, Pink, Red, Silver, White, Yellow
Maintenance
Less
Less
Durability
Durable
Durable
Water Resistant
✔
✘
✔
✘
Scratch Resistant
✔
✘
✔
✘
Stain Resistant
✔
✘
✔
✘
Wind Resistant
✔
✘
✔
✘
Acid Resistant
✔
✘
✔
✘
Appearance
Layered and Foliated
Rounded and Rough
Architecture
Interior Uses
-
Decorative Aggregates, Flooring, Interior Decoration
Exterior Uses
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As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
Other Architectural Uses
-
-
Industry
Construction Industry
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Cement Manufacture, Cobblestones, Landscaping
Medical Industry
-
-
Antiquity Uses
Artifacts, Sculpture
Artifacts
Other Uses
Commercial Uses
Creating Artwork
Creating Artwork, Jewelry, Used in aquariums
Types
Pantelleritic Ignimbrite
Pisolitic Oolite and Oncolitic Oolite
Features
High Fe content
Available in lots of colors, Generally rough to touch, Very fine grained rock
Archaeological Significance
Monuments
-
-
Famous Monuments
-
-
Sculpture
-
-
Famous Sculptures
-
-
Pictographs
-
-
Petroglyphs
-
-
Figurines
-
-
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.
Oolites form when layers of calcite are deposited around a sand grain or fossil piece and are rolled around in calm water, which makes them round.
Composition
Mineral Content
Amphibole, Feldspar, Ilmenite
Calcite, Chert, Clay, Dolomite, Quartz, Sand, Silt
Compound Content
Al, Fe
Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, FeO, MgO
Transformation
Metamorphism
✔
✘
✔
✘
Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism
-
Weathering
✔
✘
✔
✘
Types of Weathering
Biological Weathering, Chemical Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Erosion
✔
✘
✔
✘
Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
Chemical Erosion, Coastal Erosion
Physical Properties
Hardness
6-73-4
1
7
👆🏻
Grain Size
Fine Grained
Fine Grained
Fracture
Sub-conchoidal
Conchoidal
Streak
-
White
Porosity
Less Porous
Less Porous
Luster
Earthy
Pearly to Shiny
Compressive Strength
210.00 N/mm240.00 N/mm2
0.15
450
👆🏻
Cleavage
Conchoidal
-
Toughness
2
1
Specific Gravity
-9999-9999
0
8.4
👆🏻
Transparency
Translucent to Opaque
Opaque
Density
-9999 g/cm3-9999 g/cm3
0
1400
👆🏻
Thermal Properties
Specific Heat Capacity
0.84 kJ/Kg K0.65 kJ/Kg K
0.14
3.2
👆🏻
Resistance
Heat Resistant
Heat Resistant, Wear Resistant
Deposits in Eastern Continents
Asia
China, India
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
Africa
Angola, Egypt, Madagascar, Namibia, Nigeria
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
Europe
Germany, Iceland, Ireland, Italy, Spain, United Kingdom
United Kingdom
Others
-
-
Deposits in Western Continents
North America
Canada, USA
USA
South America
Argentina, Bolivia, Brazil, Colombia, Ecuador
Colombia
Deposits in Oceania Continent
Australia
Central Australia, Queensland, Western Australia
Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula