Taconite

Lherzolite

Taconite and Lherzolite

Taconite

Lherzolite

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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

Lherzolite is a type of ultramafic igneous rock which contains essential olivine and clinopyroxene and orthopyroxene in equal proportions

History

Origin

Western Australia, Minnesota

France

Discoverer

Newton Horace Winchell

Unknown

Etymology

From the name of Taconic Mountains in New England

From the Lherz Massif, an alpine peridotite complex, at Étang de Lers, near Massat in the French Pyrenees; Lherz is the archaic spelling of this location

Class

Sedimentary Rocks

Igneous Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Durable Rock, Hard Rock

Family

Group

Plutonic

Other Categories

Coarse Grained Rock, Opaque Rock

Fine Grained Rock, Opaque Rock

Texture

Banded, Trellis

Grenue

Color

Red, Reddish Brown

Black, Dark Greenish - Grey, Green, Pink, Purple

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Layered, Banded, Veined and Shiny

Glassy, Vesicular and Foilated

Uses

Architecture

Interior Uses

Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration

Decorative Aggregates, Entryways, Homes, Interior Decoration

Exterior Uses

As Building Stone, Garden Decoration, Paving Stone

As Building Stone, As Facing Stone, Office Buildings

Other Architectural Uses

Curbing

Industry

Construction Industry

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

Landscaping, Manufacture of Magnesium and Dolomite Refractories, Used for flooring, stair treads, borders and window sills.

Medical Industry

Antiquity Uses

Artifacts

Artifacts, Sculpture

Other Uses

Commercial Uses

As a touchstone, Cemetery Markers, Creating Artwork

As armour rock for sea walls, Source of Magnesia (MgO), Used in aquariums

Types

Iron formation

Garnet Lherzolite

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

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.

Lherzolite 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

Harzburgite, Olivine, Pyroxene, Pyrrhotite

Compound Content

Fe, Iron(III) Oxide, Silicon Dioxide

CaO, Cr, Chromium(III) Oxide, MgO

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Cataclastic Metamorphism, Contact 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, Water Erosion, Wind Erosion

Properties

Physical Properties

Hardness

5.5-66.5

1 7

👆🏻

Grain Size

Large and Coarse Grained

Fine Grained

Fracture

Uneven, Splintery or Conchoidal

Conchoidal

Streak

White

Porosity

Highly Porous

Less Porous

Luster

Earthy

Subvitreous to Dull

Compressive Strength

190.00 N/mm²290.00 N/mm²

0.15 450

👆🏻

Cleavage

Perfect

Toughness

1.5

2.7

Specific Gravity

5-5.32.86

0 8.4

👆🏻

Transparency

Translucent to Opaque

Opaque

Density

-9999 g/cm³2.8-2.9 g/cm³

0 1400

👆🏻

Thermal Properties

Specific Heat Capacity

3.20 kJ/Kg K0.95 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

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

Russia, South Korea

Africa

Kenya, Morocco, South Africa, Tanzania

Western Africa

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

Deposits in Oceania Continent

Australia

New South Wales, Queensland, South Australia, Western Australia

Central Australia, Western Australia

All about Taconite and Lherzolite Properties

Know all about Taconite and Lherzolite properties here. All properties of rocks are important as they define the type of rock and its application. Taconite belongs to Sedimentary Rocks while Lherzolite belongs to Igneous Rocks.Texture of Taconite is Banded, Trellis whereas that of Lherzolite is Grenue. Taconite appears Layered, Banded, Veined and Shiny and Lherzolite appears Glassy, Vesicular and Foilated. The luster of Taconite is earthy while that of Lherzolite is subvitreous to dull. Taconite is available in red, reddish brown colors whereas Lherzolite is available in black, dark greenish - grey, green, pink, purple colors. The commercial uses of Taconite are as a touchstone, cemetery markers, creating artwork and that of Lherzolite are as armour rock for sea walls, source of magnesia (mgo), used in aquariums.