Taconite

Limestone

Taconite and Limestone

Taconite

Limestone

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Definition

Taconite is a low-grade iron ore which belongs to sedimentary rock and containing about 27% iron and 51% silica

Limestone is a sedimentary rock composed mostly of calcite and aragonite, which are different crystal forms of calcium carbonate

History

Origin

Western Australia, Minnesota

New Zealand

Discoverer

Newton Horace Winchell

Belsazar Hacquet

Etymology

From the name of Taconic Mountains in New England

From lime and stone in late 14th Century

Class

Sedimentary Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Other Categories

Coarse Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Banded, Trellis

Clastic or Non-Clastic

Color

Red, Reddish Brown

Beige, Black, Blue, Brown, Cream, Gold, Green, Grey, Light Green, Light Grey, Linen, Pink, Red, Rust, Silver, White, Yellow

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

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Appearance

Layered, Banded, Veined and Shiny

Rough and Banded

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration

Decorative Aggregates, Interior Decoration

Exterior Uses

As Building Stone, Garden Decoration, Paving Stone

As Building Stone, As Facing Stone, Garden Decoration, Office Buildings

Other Architectural Uses

Curbing

Industry

Construction Industry

As Dimension Stone, Used for flooring, stair treads, borders and window sills.

Cement Manufacture, Cobblestones, for Road Aggregate, Production of Glass and Ceramics, Raw material for the manufacture of mortar, Roadstone, Source of calcium

Medical Industry

In Chemical and Pharmaceutical Industry, Medicines and Cosmetics

Antiquity Uses

Artifacts

Artifacts, Monuments, Sculpture, Small Figurines

Other Uses

Commercial Uses

As a touchstone, Cemetery Markers, Creating Artwork

Animal feed filler, As a Feed Additive for Livestock, Paper Industry, Raw material for manufacture of quicklime, slaked lime, Soil Conditioner, Used in aquariums, Whiting material in toothpaste, paint and paper

Types

Iron formation

Chalk, Coquina, Fossiliferous Limestone, Lithographic Limestone, Oolitic Limestone, Travertine, Tufa

Features

Is one of the oldest rock

Host Rock for Lead, Stalactites and stalagmites are formed from this rock, Zinc and Copper Deposits

Archaeological Significance

Monuments

Famous Monuments

Acropolis of Athens in Greece, Agia Sophia in Istanbul, Turkey, Al Aqsa Mosque in Jerusalem, Angkor Wat in Cambodia, Big Ben in London, Charminar in Hyderabad, India, Chhatrapati Shivaji Terminus in Maharashtra, India, Chichen Itza in Mexico, Empire State Building in New York, Khajuraho Temples, India, Kremlin in Moscow, Louvre in Paris, France, Neuschwanstein in Bavaria, Potala Palace in Lahasa, Tibet, Wailing Wall in Jerusalem

Sculpture

Famous Sculptures

Ajanta Caves in Maharashtra, India, Elephanta Caves in Maharashtra, India

Pictographs

Petroglyphs

Figurines

Fossils

Present

Formation

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.

Limestone is a sedimentary rock which is mainly made up of calcium carbonate.

Composition

Mineral Content

Hematite, Magnetite, Quartz

Calcite, Chert, Clay, Dolomite, Quartz, Sand, Silt

Compound Content

Fe, Iron(III) Oxide, Silicon Dioxide

Aluminium Oxide, NaCl, CaO, Iron(III) Oxide, FeO, MgO

Transformation

Metamorphism

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Types of Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Mechanical Weathering

Biological Weathering, Chemical Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Coastal Erosion, Glacier Erosion, Water Erosion, Wind Erosion

Chemical Erosion, Coastal Erosion

Properties

Physical Properties

Hardness

5.5-63-4

1 7

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Grain Size

Large and Coarse Grained

Fine Grained

Fracture

Uneven, Splintery or Conchoidal

Splintery

Streak

White

Porosity

Highly Porous

Less Porous

Luster

Earthy

Dull to Pearly

Compressive Strength

190.00 N/mm²115.00 N/mm²

0.15 450

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Cleavage

Toughness

1.5

Specific Gravity

5-5.32.3-2.7

0 8.4

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Transparency

Translucent to Opaque

Opaque

Density

-9999 g/cm³2.3-2.7 g/cm³

0 1400

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Thermal Properties

Specific Heat Capacity

3.20 kJ/Kg K0.91 kJ/Kg K

0.14 3.2

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Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Pressure Resistant

Reserves

Deposits in Eastern Continents

Asia

China, India, Iran, Iraq, Oman, Russia, Saudi Arabia, Taiwan, Thailand, Vietnam

Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam

Africa

Kenya, Morocco, South Africa, Tanzania

Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe

Europe

Austria, France, Greece, Italy, Malta, Poland, Portugal, Serbia, Spain, Sweden, United Kingdom

United Kingdom

Others

Greenland, Mid-Atlantic Ridge

Deposits in Western Continents

North America

Canada, Mexico, USA

USA

South America

Bolivia, Brazil

Colombia

Deposits in Oceania Continent

Australia

New South Wales, Queensland, South Australia, Western Australia

Adelaide, New Zealand, Queensland, Victoria, Yorke Peninsula

All about Taconite and Limestone Properties

Know all about Taconite and Limestone properties here. All properties of rocks are important as they define the type of rock and its application. Taconite and Limestone belong to Sedimentary Rocks.Texture of Taconite is Banded, Trellis whereas that of Limestone is Clastic or Non-Clastic. Taconite appears Layered, Banded, Veined and Shiny and Limestone appears Rough and Banded. The luster of Taconite is earthy while that of Limestone is dull to pearly. Taconite is available in red, reddish brown colors whereas Limestone is available in beige, black, blue, brown, cream, gold, green, grey, light green, light grey, linen, pink, red, rust, silver, white, yellow colors. The commercial uses of Taconite are as a touchstone, cemetery markers, creating artwork and that of Limestone are animal feed filler, as a feed additive for livestock, paper industry, raw material for manufacture of quicklime, slaked lime, soil conditioner, used in aquariums, whiting material in toothpaste, paint and paper.