Eclogite

Taconite

Eclogite and Taconite

Eclogite

Taconite

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Definition

Eclogite is an extreme metamorphic rock, formed by regional metamorphism of basalt rock under very high pressure and temperature

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

History

Origin

Western Australia, Minnesota

Discoverer

René Just Haüy

Newton Horace Winchell

Etymology

From French, Greek eklogē selection with reference to the selective content of the rock + -ite1

From the name of Taconic Mountains in New England

Class

Metamorphic Rocks

Sedimentary Rocks

Sub-Class

Durable Rock, Medium Hardness Rock

Family

Group

Other Categories

Fine Grained Rock, Opaque Rock

Coarse Grained Rock, Opaque Rock

Texture

Earthy

Banded, Trellis

Color

Black, Brown, Green, Grey, Pink, White

Red, Reddish Brown

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull, Banded and Foilated

Layered, Banded, Veined and Shiny

Uses

Architecture

Interior Uses

Decorative Aggregates, Interior Decoration

Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration

Exterior Uses

Paving Stone, Garden Decoration

As Building Stone, Garden Decoration, Paving Stone

Other Architectural Uses

Curbing

Industry

Construction Industry

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

Medical Industry

In Chemical and Pharmaceutical Industry, Medicines and Cosmetics

Antiquity Uses

Artifacts

Other Uses

Commercial Uses

Creating Artwork, Gemstone

As a touchstone, Cemetery Markers, Creating Artwork

Types

Eclogite

Iron formation

Features

Available in Lots of Colors and Patterns, Generally rough to touch, Is one of the oldest rock

Is one of the oldest rock

Archaeological Significance

Monuments

Famous Monuments

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

Present

Formation

Eclogite forms from high-pressure metamorphism of mafic igneous rocks mainly, basalt or gabbro as it plunges into the mantle in a subduction zone.

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.

Composition

Mineral Content

Amphibole, Coesite, Corundum, Dolomite, Garnet, Kyanite, Lawsonite, Paragonite, Phengite, Pyroxene, Quartz, Rutile, Zoisite

Hematite, Magnetite, Quartz

Compound Content

Aluminium Oxide, NaCl, CaO, Carbon Dioxide, Iron(III) Oxide, Magnesium Carbonate, MgO, Sodium Oxide, Potassium, Sodium

Fe, Iron(III) Oxide, Silicon Dioxide

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

Weathering

✔ ✘

Types of Weathering

Mechanical Weathering

Biological Weathering, Mechanical Weathering

Erosion

✔ ✘

Types of Erosion

Chemical Erosion, Sea Erosion

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

Properties

Physical Properties

Hardness

3.5-45.5-6

1 7

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Grain Size

Fine Grained

Large and Coarse Grained

Fracture

Uneven, Splintery or Conchoidal

Streak

White

Porosity

Less Porous

Highly Porous

Luster

Subvitreous to Dull

Earthy

Compressive Strength

200.00 N/mm²190.00 N/mm²

0.15 450

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Cleavage

Perfect

Toughness

1.5

Specific Gravity

2.86-2.875-5.3

0 8.4

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Transparency

Opaque

Translucent to Opaque

Density

3.2-3.6 g/cm³-9999 g/cm³

0 1400

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Thermal Properties

Specific Heat Capacity

0.75 kJ/Kg K3.20 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant

Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant

Reserves

Deposits in Eastern Continents

Asia

India, Kazakhstan, Kuwait, Russia, South Korea, Thailand, Turkey

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

Africa

Ethiopia, Morocco, South Africa

Kenya, Morocco, South Africa, Tanzania

Europe

France, Germany, Italy, Norway, Scotland

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

Others

Greenland

Greenland, Mid-Atlantic Ridge

Deposits in Western Continents

North America

Canada, Costa Rica, Panama, USA

Canada, Mexico, USA

South America

Argentina, Brazil, Colombia, Ecuador

Bolivia, Brazil

Deposits in Oceania Continent

Australia

Central Australia, New Zealand, Queensland

New South Wales, Queensland, South Australia, Western Australia

All about Eclogite and Taconite Properties

Know all about Eclogite and Taconite properties here. All properties of rocks are important as they define the type of rock and its application. Eclogite belongs to Metamorphic Rocks while Taconite belongs to Sedimentary Rocks.Texture of Eclogite is Earthy whereas that of Taconite is Banded, Trellis. Eclogite appears Dull, Banded and Foilated and Taconite appears Layered, Banded, Veined and Shiny. The luster of Eclogite is subvitreous to dull while that of Taconite is earthy. Eclogite is available in black, brown, green, grey, pink, white colors whereas Taconite is available in red, reddish brown colors. The commercial uses of Eclogite are creating artwork, gemstone and that of Taconite are as a touchstone, cemetery markers, creating artwork.