Definition
Oolite is a sedimentary rock formed from ooids, spherical grains which are composed of concentric layers of calcite
Taconite is a low-grade iron ore which belongs to sedimentary rock and containing about 27% iron and 51% silica
Origin
-
Western Australia, Minnesota
Discoverer
William Smith
Newton Horace Winchell
Etymology
From oo- + -lite, after German Oolit. A rock consisting of fine grains of carbonate of lime
From the name of Taconic Mountains in New England
Class
Sedimentary Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock
Texture
Clastic or Non-Clastic
Banded, Trellis
Color
Black, Blue, Brown, Cream, Green, Grey, Pink, Red, Silver, White, Yellow
Red, Reddish Brown
Durability
Durable
Durable
Scratch Resistant
Yes
Yes
Appearance
Rounded and Rough
Layered, Banded, Veined and Shiny
Interior Uses
Decorative Aggregates, Flooring, Interior Decoration
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration
Exterior Uses
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone
As Building Stone, Garden Decoration, Paving Stone
Other Architectural Uses
-
Curbing
Construction Industry
Cement Manufacture, Cobblestones, Landscaping
As Dimension Stone, Used for flooring, stair treads, borders and window sills.
Antiquity Uses
Artifacts
Artifacts
Commercial Uses
Creating Artwork, Jewelry, Used in aquariums
As a touchstone, Cemetery Markers, Creating Artwork
Types
Pisolitic Oolite and Oncolitic Oolite
Iron formation
Features
Available in lots of colors, Generally rough to touch, Very fine grained rock
Is one of the oldest rock
Archaeological Significance
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.
Taconite is a type of sedimentary rock formed when a river carries or transports pieces of broken rock as it flows. When the river reaches a lake or sea, its load of transported rocks settles or deposits at the bottom of sea or lake.
Mineral Content
Calcite, Chert, Clay, Dolomite, Quartz, Sand, Silt
Hematite, Magnetite, Quartz
Compound Content
Aluminium Oxide, Ca, NaCl, CaO, Iron(III) Oxide, FeO, MgO
Fe, Iron(III) Oxide, Silicon Dioxide
Types of Metamorphism
-
-
Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Biological Weathering, Mechanical Weathering
Types of Erosion
Chemical Erosion, Coastal Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion
Grain Size
Fine Grained
Large and Coarse Grained
Fracture
Conchoidal
Uneven, Splintery or Conchoidal
Porosity
Less Porous
Highly Porous
Luster
Pearly to Shiny
Earthy
Specific Gravity
-9999
5-5.3
Transparency
Opaque
Translucent to Opaque
Density
-9999 g/cm3
-9999 g/cm3
Resistance
Heat Resistant, Wear Resistant
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Deposits in Eastern Continents
Asia
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
China, India, Iran, Iraq, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam
Africa
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
Kenya, Morocco, South Africa, Tanzania
Europe
United Kingdom
Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom
Others
-
Greenland, Mid-Atlantic Ridge
Deposits in Western Continents
North America
USA
Canada, Mexico, USA
South America
Colombia
Bolivia, Brazil
Deposits in Oceania Continent
Australia
Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula
New South Wales, Queensland, South Australia, Western Australia
All about Oolite and Taconite Properties
Know all about Oolite and Taconite properties here. All properties of rocks are important as they define the type of rock and its application. Oolite and Taconite belong to Sedimentary Rocks.Texture of Oolite is Clastic or Non-Clastic whereas that of Taconite is Banded, Trellis. Oolite appears Rounded and Rough and Taconite appears Layered, Banded, Veined and Shiny. The luster of Oolite is pearly to shiny while that of Taconite is earthy. Oolite is available in black, blue, brown, cream, green, grey, pink, red, silver, white, yellow colors whereas Taconite is available in red, reddish brown colors. The commercial uses of Oolite are creating artwork, jewelry, used in aquariums and that of Taconite are as a touchstone, cemetery markers, creating artwork.