Soapstone

Eclogite

Soapstone and Eclogite

Soapstone

Eclogite

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1 Definition

1.1 Definition

It is a metamorphic magnesium rich rock because it is composed of the mineral talc

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

1.2 History

1.2.1 Origin

USA

Unknown

1.2.2 Discoverer

Unknown

René Just Haüy

1.3 Etymology

From 17th century, because of its greasy feel and use like a soap

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

1.4 Class

Metamorphic Rocks

1.4.1 Sub-Class

Durable Rock, Soft Rock

Durable Rock, Medium Hardness Rock

1.5 Family

1.5.1 Group

Not Applicable

1.6 Other Categories

Fine Grained Rock, Opaque Rock

2 Texture

2.1 Texture

Polished

Earthy

2.2 Color

Black, Black to Grey, Green, Grey

Black, Brown, Colourless, Green, Grey, Pink, White

2.3 Maintenance

Less

2.4 Durability

Durable

2.4.1 Water Resistant

✔ ✘

2.4.2 Scratch Resistant

✔ ✘

2.4.3 Stain Resistant

✔ ✘

2.4.4 Wind Resistant

✔ ✘

2.4.5 Acid Resistant

✔ ✘

2.5 Appearance

Dull, Banded and Foilated

3 Uses

3.1 Architecture

3.1.1 Interior Uses

Bathrooms, Decorative Aggregates, Homes, Interior Decoration

Decorative Aggregates, Interior Decoration

3.1.2 Exterior Uses

As Facing Stone, Garden Decoration

Paving Stone, Garden Decoration

3.1.3 Other Architectural Uses

Curbing

3.2 Industry

3.2.1 Construction Industry

Manufacture of Magnesium and Dolomite Refractories

Not Yet Used

3.2.2 Medical Industry

Taken as a Supplement for Calcium or Magnesium

In Chemical and Pharmaceutical Industry, Medicines and Cosmetics

3.3 Antiquity Uses

Artifacts, Jewellery, Monuments, Sculpture

Artifacts

3.4 Other Uses

3.4.1 Commercial Uses

Cemetery Markers, Creating Artwork, Gemstone, Jewelry, Manufacture of Soap, Solvents, Dyes, Plastics and Fibres, Production of Lime, Source of Magnesia (MgO)

Creating Artwork, Gemstone

4 Types

4.1 Types

Not Available

4.2 Features

Host Rock for Lead

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

4.3 Archaeological Significance

4.3.1 Monuments

Used

Not Yet Used

4.3.2 Famous Monuments

Christ the Redeemer in Rio de Janeiro, Stonehenge in English county of Wiltshire

Not Applicable

4.3.3 Sculpture

Used

Not Yet Used

4.3.4 Famous Sculptures

Data Not Available

Not Applicable

4.3.5 Pictographs

Used

4.3.6 Petroglyphs

Used

4.3.7 Figurines

Used

Not Yet Used

4.4 Fossils

Absent

5 Formation

5.1 Formation

Soapstone is a talc-schist, which is a type of metamorphic rock and it is largely composed of the mineral talc and is thus rich inmagnesium.

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

5.2 Composition

5.2.1 Mineral Content

Albite, Apatite, Biotite, Calcite, Carbonate, Clay Minerals, Hornblende, Ilmenite, Micas, Plagioclase, Pyroxene, Quartz

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

5.2.2 Compound Content

CaO, Mg, MgO

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

5.3 Transformation

5.3.1 Metamorphism

✔ ✘

5.3.2 Types of Metamorphism

Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism

Not Applicable

5.3.3 Weathering

✔ ✘

5.3.4 Types of Weathering

Not Applicable

Mechanical Weathering

5.3.5 Erosion

✔ ✘

5.3.6 Types of Erosion

Not Applicable

Chemical Erosion, Sea Erosion

6 Properties

6.1 Physical Properties

6.1.1 Hardness

13.5-4

1 7

6.1.2 Grain Size

Fine Grained

6.1.3 Fracture

Conchoidal

Not Available

6.1.4 Streak

Black

White

6.1.5 Porosity

Less Porous

6.1.6 Luster

Greasy

Subvitreous to Dull

6.1.7 Compressive Strength

225.00 N/mm²NA

0.15 450

6.1.8 Cleavage

Perfect

6.1.9 Toughness

Not Available

6.1.10 Specific Gravity

2.862.86-2.87

0 8.4

6.1.11 Transparency

Opaque

6.1.12 Density

2.8-2.9 g/cm³3.2-3.6 g/cm³

0 1400

6.2 Thermal Properties

6.2.1 Specific Heat Capacity

0.88 kJ/Kg KNA

0.14 3.2

6.2.2 Resistance

Heat Resistant, Pressure Resistant

Heat Resistant

7 Reserves

7.1 Deposits in Eastern Continents

7.1.1 Asia

China, India, Indonesia, Japan, North Korea, Russia, Saudi Arabia, Singapore, South Korea, Sri Lanka, Tajikistan, Thailand

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

7.1.2 Africa

Egypt, Ethiopia, Ghana, South Africa, Western Africa

Ethiopia, Morocco, South Africa

7.1.3 Europe

Austria, England, Finland, France, Germany, Greece, Spain, Sweden, Switzerland, United Kingdom

France, Germany, Italy, Norway, Scotland

7.1.4 Others

Not Yet Found

Greenland

7.2 Deposits in Western Continents

7.2.1 North America

Canada, USA

Canada, Costa Rica, Panama, USA

7.2.2 South America

Colombia

Argentina, Brazil, Colombia, Ecuador

7.3 Deposits in Oceania Continent

7.3.1 Australia

Central Australia, New Zealand, Queensland

All about Soapstone and Eclogite Properties

Know all about Soapstone and Eclogite properties here. All properties of rocks are important as they define the type of rock and its application. Soapstone and Eclogite belong to Metamorphic Rocks.Texture of Soapstone is Polished whereas that of Eclogite is Earthy. Soapstone appears Dull, Banded and Foilated and Eclogite appears Dull, Banded and Foilated. The luster of Soapstone is greasy while that of Eclogite is subvitreous to dull. Soapstone is available in black, black to grey, green, grey colors whereas Eclogite is available in black, brown, colourless, green, grey, pink, white colors. The commercial uses of Soapstone and Eclogite are cemetery markers, creating artwork, gemstone, jewelry, manufacture of soap, solvents, dyes, plastics and fibres, production of lime, source of magnesia (mgo).