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Taconite
Taconite

Picrite
Picrite



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Taconite
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Picrite

Taconite vs Picrite

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Definition

Definition

Taconite is a low-grade iron ore which belongs to sedimentary rock and containing about 27% iron and 51% silica
Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine

History

Origin

Western Australia, Minnesota
Hawaii Islands

Discoverer

Newton Horace Winchell
Unknown

Etymology

From the name of Taconic Mountains in New England
From Greek pikros bitter + -ite, 19th century

Class

Sedimentary Rocks
Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock

Family

Group

-
Volcanic

Other Categories

Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock

Texture

Texture

Banded, Trellis
Earthy, Rough

Color

Red, Reddish Brown
Black, Brown, Green, Grey, Pink, White, Yellow

Maintenance

Less
Less

Durability

Durable
Durable

Water Resistant

Scratch Resistant

Stain Resistant

Wind Resistant

Acid Resistant

Appearance

Layered, Banded, Veined and Shiny
Rough and Shiny

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration
Countertops, Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

As Building Stone, Garden Decoration, Paving Stone
As Building Stone, As Facing Stone, Garden Decoration, Paving Stone

Other Architectural Uses

Curbing
Curbing

Industry

Construction Industry

As Dimension Stone, Used for flooring, stair treads, borders and window sills.
As a Sintering Agent in Steel Industry to process Iron Ore, Cement Manufacture, for Road Aggregate, Manufacture of Magnesium and Dolomite Refractories, Roadstone, Used for flooring, stair treads, borders and window sills.

Medical Industry

-
-

Antiquity Uses

Artifacts
Artifacts, Monuments, Sculpture

Other Uses

Commercial Uses

As a touchstone, Cemetery Markers, Creating Artwork
As a Feed Additive for Livestock, As armour rock for sea walls, Metallurgical Flux, Pottery, Source of Magnesia (MgO)

Types

Types

Iron formation
Oceanite

Features

Is one of the oldest rock
Host Rock for Lead

Archaeological Significance

Monuments

-
-

Famous Monuments

-
-

Sculpture

-
-

Famous Sculptures

-
-

Pictographs

-
-

Petroglyphs

-
-

Figurines

-
-

Fossils

Present
Absent

Formation

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.
Picrite 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

Hematite, Magnetite, Quartz
Biotite, Olivine, Plagioclase, Pyrrhotite

Compound Content

Fe, Iron(III) Oxide, Silicon Dioxide
Al, CaO, Carbon Dioxide, Mg, MgO

Transformation

Metamorphism

Types of Metamorphism

-
Burial Metamorphism, Cataclastic Metamorphism, Impact Metamorphism, Regional Metamorphism

Weathering

Types of Weathering

Biological Weathering, Mechanical Weathering
Biological Weathering

Erosion

Types of Erosion

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

Properties

Physical Properties

Hardness

5.5-66.8
1 7
👆🏻

Grain Size

Large and Coarse Grained
Fine Grained

Fracture

Uneven, Splintery or Conchoidal
Uneven

Streak

White
White, Greenish White or Grey

Porosity

Highly Porous
Less Porous

Luster

Earthy
Subvitreous to Dull

Compressive Strength

190.00 N/mm2189.00 N/mm2
0.15 450
👆🏻

Cleavage

-
-

Toughness

1.5
2.1

Specific Gravity

5-5.32.75-2.92
0 8.4
👆🏻

Transparency

Translucent to Opaque
Opaque

Density

-9999 g/cm31.5-2.5 g/cm3
0 1400
👆🏻

Thermal Properties

Specific Heat Capacity

3.20 kJ/Kg K0.88 kJ/Kg K
0.14 3.2
👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Heat Resistant

Reserves

Deposits in Eastern Continents

Asia

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

Africa

Kenya, Morocco, South Africa, Tanzania
South Africa

Europe

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

Others

Greenland, Mid-Atlantic Ridge
-

Deposits in Western Continents

North America

Canada, Mexico, USA
Canada, USA

South America

Bolivia, Brazil
Brazil

Deposits in Oceania Continent

Australia

New South Wales, Queensland, South Australia, Western Australia
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Taconite vs Picrite Information

Earth’s outer layer is covered by rocks and these rocks have different physical and chemical properties. As two rocks are not same, it’s fun to compare them. You can also know more about Taconite and Picrite Reserves. Taconite is a low-grade iron ore which belongs to sedimentary rock and containing about 27% iron and 51% silica. Picrite is a variety of high-magnesium olivine basalt that is very rich in the mineral olivine. These rocks are composed of many distinct minerals. The process of formation of rocks is different for various rocks. Rocks are quarried from many years for various purposes. You can check out Taconite vs Picrite information and Taconite vs Picrite characteristics in the upcoming sections.

Taconite vs Picrite Characteristics

Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Taconite vs Picrite characteristics assist us to distinguish and recognize rocks. Also you can check about Properties of Taconite and Properties of Picrite. Learn more about Taconite vs Picrite in the next section. The interior uses of Taconite include Decorative aggregates, Entryways, Flooring, Homes and Interior decoration whereas the interior uses of Picrite include Countertops, Decorative aggregates, Homes and Interior decoration. Due to some exceptional properties of Taconite and Picrite, they have various applications in construction industry. The uses of Taconite in construction industry include As dimension stone, Used for flooring, stair treads, borders and window sills. and that of Picrite include As a sintering agent in steel industry to process iron ore, Cement manufacture, For road aggregate, Manufacture of magnesium and dolomite refractories, Roadstone, Used for flooring, stair treads, borders and window sills..

More about Taconite and Picrite

Here you can know more about Taconite and Picrite. The life cycle of a rock consists of formation of rock, composition of rock and transformation of rock. The composition of Taconite and Picrite consists of mineral content and compound content. The mineral content of Taconite includes Hematite, Magnetite, Quartz and mineral content of Picrite includes Biotite, Olivine, Plagioclase, Pyrrhotite. You can also check out the list of all Sedimentary Rocks. When we have to compare Taconite vs Picrite, the texture, color and appearance plays an important role in determining the type of rock. Taconite is available in red, reddish brown colors whereas, Picrite is available in black, brown, green, grey, pink, white, yellow colors. Appearance of Taconite is Layered, Banded, Veined and Shiny and that of Picrite is Rough and Shiny. Properties of rock is another aspect for Taconite vs Picrite. The hardness of Taconite is 5.5-6 and that of Picrite is 6.8. The types of Taconite are Iron formation whereas types of Picrite are Oceanite. Streak of rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Taconite is white while that of Picrite is white, greenish white or grey. The specific heat capacity of Taconite is 3.20 kJ/Kg K and that of Picrite is 0.88 kJ/Kg K. Depending on the properties like hardness, toughness, specific heat capacity, porosity etc., rocks are resistant to heat, wear, impact, etc.Taconite is heat resistant, impact resistant, pressure resistant, wear resistant whereas Picrite is heat resistant.