Soapstone

Pantellerite

Soapstone and Pantellerite

Soapstone

Pantellerite

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Definition

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

Pantellerite is a peralkaline rhyolite. It has a higher iron and lower aluminium composition than comendite

History

Origin

USA

Strait of sicily

Discoverer

Unknown

Etymology

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

From Pantelleria, a volcanic island in the Strait of Sicily

Class

Metamorphic Rocks

Igneous Rocks

Sub-Class

Durable Rock, Soft Rock

Durable Rock, Hard Rock

Family

Group

Volcanic

Other Categories

Fine Grained Rock, Opaque Rock

Texture

Polished

Eutaxitic

Color

Black, Black to Grey, Green, Grey

Dark Greenish - Grey

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull, Banded and Foilated

Layered and Foliated

Uses

Architecture

Interior Uses

Bathrooms, Decorative Aggregates, Homes, Interior Decoration

Exterior Uses

As Facing Stone, Garden Decoration

Other Architectural Uses

Curbing

Industry

Construction Industry

Manufacture of Magnesium and Dolomite Refractories

Medical Industry

Taken as a Supplement for Calcium or Magnesium

Antiquity Uses

Artifacts, Jewellery, Monuments, Sculpture

Artifacts, Sculpture

Other Uses

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

Types

Metamorphic rock

Pantelleritic Ignimbrite

Features

Host Rock for Lead

High Fe content

Archaeological Significance

Monuments

Famous Monuments

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

Sculpture

Famous Sculptures

Pictographs

Petroglyphs

Figurines

Fossils

Absent

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.

Pantellerite 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

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

Amphibole, Feldspar, Ilmenite

Compound Content

CaO, Mg, MgO

Al, Fe

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

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

Burial Metamorphism, Cataclastic Metamorphism

Weathering

✔ ✘

Types of Weathering

Biological Weathering, Chemical Weathering

Erosion

✔ ✘

Types of Erosion

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

Properties

Physical Properties

Hardness

16-7

1 7

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Grain Size

Fine Grained

Fracture

Conchoidal

Sub-conchoidal

Streak

Black

Porosity

Less Porous

Luster

Greasy

Earthy

Compressive Strength

225.00 N/mm²210.00 N/mm²

0.15 450

👆🏻

Cleavage

Perfect

Conchoidal

Toughness

Specific Gravity

2.86-9999

0 8.4

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Transparency

Opaque

Translucent to Opaque

Density

2.8-2.9 g/cm³-9999 g/cm³

0 1400

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Thermal Properties

Specific Heat Capacity

0.88 kJ/Kg K0.84 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Pressure Resistant

Heat Resistant

Reserves

Deposits in Eastern Continents

Asia

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

China, India

Africa

Egypt, Ethiopia, Ghana, South Africa, Western Africa

Angola, Egypt, Madagascar, Namibia, Nigeria

Europe

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

Germany, Iceland, Ireland, Italy, Spain, United Kingdom

Others

Deposits in Western Continents

North America

Canada, USA

South America

Colombia

Argentina, Bolivia, Brazil, Colombia, Ecuador

Deposits in Oceania Continent

Australia

Central Australia, New Zealand, Queensland

Central Australia, Queensland, Western Australia

All about Soapstone and Pantellerite Properties

Know all about Soapstone and Pantellerite properties here. All properties of rocks are important as they define the type of rock and its application. Soapstone belongs to Metamorphic Rocks while Pantellerite belongs to Igneous Rocks.Texture of Soapstone is Polished whereas that of Pantellerite is Eutaxitic. Soapstone appears Dull, Banded and Foilated and Pantellerite appears Layered and Foliated. The luster of Soapstone is greasy while that of Pantellerite is earthy. Soapstone is available in black, black to grey, green, grey colors whereas Pantellerite is available in dark greenish - grey colors. The commercial uses of Soapstone and Pantellerite are cemetery markers, creating artwork, gemstone, jewelry, manufacture of soap, solvents, dyes, plastics and fibres, production of lime, source of magnesia (mgo).