Definition
Oolite is a sedimentary rock formed from ooids, spherical grains which are composed of concentric layers of calcite
Pantellerite is a peralkaline rhyolite. It has a higher iron and lower aluminium composition than comendite
History
Origin
-
Strait of sicily
Discoverer
William Smith
Unknown
Etymology
From oo- + -lite, after German Oolit. A rock consisting of fine grains of carbonate of lime
From Pantelleria, a volcanic island in the Strait of Sicily
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
Family
Group
Volcanic
Volcanic
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
Texture
Clastic or Non-Clastic
Eutaxitic
Color
Black, Blue, Brown, Cream, Green, Grey, Pink, Red, Silver, White, Yellow
Dark Greenish - Grey
Maintenance
Less
Less
Durability
Durable
Durable
Water Resistant
✔
✘
✔
✘
Scratch Resistant
✔
✘
✔
✘
Stain Resistant
✔
✘
✔
✘
Wind Resistant
✔
✘
✔
✘
Acid Resistant
✔
✘
✔
✘
Appearance
Rounded and Rough
Layered and Foliated
Architecture
Interior Uses
Decorative Aggregates, Flooring, Interior Decoration
-
Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
-
Other Architectural Uses
-
-
Industry
Construction Industry
Cement Manufacture, Cobblestones, Landscaping
-
Medical Industry
-
-
Antiquity Uses
Artifacts
Artifacts, Sculpture
Other Uses
Commercial Uses
Creating Artwork, Jewelry, Used in aquariums
Creating Artwork
Types
Pisolitic Oolite and Oncolitic Oolite
Pantelleritic Ignimbrite
Features
Available in lots of colors, Generally rough to touch, Very fine grained rock
High Fe content
Archaeological Significance
Monuments
-
-
Famous Monuments
-
-
Sculpture
-
-
Famous Sculptures
-
-
Pictographs
-
-
Petroglyphs
-
-
Figurines
-
-
Fossils
Present
Absent
Formation
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.
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.
Composition
Mineral Content
Calcite, Chert, Clay, Dolomite, Quartz, Sand, Silt
Amphibole, Feldspar, Ilmenite
Compound Content
Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, FeO, MgO
Al, Fe
Transformation
Metamorphism
✔
✘
✔
✘
Types of Metamorphism
-
Burial Metamorphism, Cataclastic Metamorphism
Weathering
✔
✘
✔
✘
Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Chemical Weathering
Erosion
✔
✘
✔
✘
Types of Erosion
Chemical Erosion, Coastal Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion
Physical Properties
Hardness
3-46-7
1
7
👆🏻
Grain Size
Fine Grained
Fine Grained
Fracture
Conchoidal
Sub-conchoidal
Streak
White
-
Porosity
Less Porous
Less Porous
Luster
Pearly to Shiny
Earthy
Compressive Strength
40.00 N/mm2210.00 N/mm2
0.15
450
👆🏻
Cleavage
-
Conchoidal
Toughness
1
2
Specific Gravity
-9999-9999
0
8.4
👆🏻
Transparency
Opaque
Translucent to Opaque
Density
-9999 g/cm3-9999 g/cm3
0
1400
👆🏻
Thermal Properties
Specific Heat Capacity
0.65 kJ/Kg K0.84 kJ/Kg K
0.14
3.2
👆🏻
Resistance
Heat Resistant, Wear Resistant
Heat Resistant
Deposits in Eastern Continents
Asia
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
China, India
Africa
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
Angola, Egypt, Madagascar, Namibia, Nigeria
Europe
United Kingdom
Germany, Iceland, Ireland, Italy, Spain, United Kingdom
Others
-
-
Deposits in Western Continents
North America
USA
Canada, USA
South America
Colombia
Argentina, Bolivia, Brazil, Colombia, Ecuador
Deposits in Oceania Continent
Australia
Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula
Central Australia, Queensland, Western Australia