Soapstone

Jasperoid

Soapstone and Jasperoid

Soapstone

Jasperoid

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Definition

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

Jasperoid is a rare, peculiar type of metasomatic alteration of rocks

History

Origin

USA

Discoverer

Unknown

Etymology

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

From silica, the main mineral content of Jasperoid

Class

Metamorphic Rocks

Sedimentary Rocks

Sub-Class

Durable Rock, Soft Rock

Durable Rock, Medium Hardness Rock

Family

Group

Other Categories

Fine Grained Rock, Opaque Rock

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

Texture

Polished

Earthy

Color

Black, Black to Grey, Green, Grey

Black, Brown, Green, Grey, Pink, White

Maintenance

Less

Durability

Durable

Water Resistant

✔ ✘

Scratch Resistant

✔ ✘

Stain Resistant

✔ ✘

Wind Resistant

✔ ✘

Acid Resistant

✔ ✘

Appearance

Dull, Banded and Foilated

Glassy or Pearly

Uses

Architecture

Interior Uses

Bathrooms, Decorative Aggregates, Homes, Interior Decoration

Decorative Aggregates, Floor Tiles, Homes, Interior Decoration

Exterior Uses

As Facing Stone, Garden Decoration

As Building Stone, Garden Decoration, Office Buildings, Paving Stone

Other Architectural Uses

Curbing

Industry

Construction Industry

Manufacture of Magnesium and Dolomite Refractories

As a Flux in the Production of Steel and Pig Iron, As a Sintering Agent in Steel Industry to process Iron Ore, As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement, Manufacture of Magnesium and Dolomite Refractories, Production of Glass and Ceramics, Serves as an Oil and Gas Reservoir rock

Medical Industry

Taken as a Supplement for Calcium or Magnesium

Antiquity Uses

Artifacts, Jewellery, Monuments, 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)

An Oil and Gas Reservoir, As a Feed Additive for Livestock, Gemstone, Metallurgical Flux, Production of Lime, Soil Conditioner, Source of Magnesia (MgO)

Types

Metamorphic rock

Features

Host Rock for Lead

Host Rock for Lead, Traps for subsurface fluids like Oil and Natural Gas., Zinc and Copper Deposits

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

Present

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.

Jasperoid is a rare and peculiar type of metasomatic alteration of rocks. It is formed by extreme alteration of wall rocks within a shear zone which may occur in sediments, andesites, trachytes and basalts.

Composition

Mineral Content

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

Clay Minerals, Pyrite, Quartz, Sulfides

Compound Content

CaO, Mg, MgO

NaCl, CaO, Carbon Dioxide, Magnesium Carbonate, MgO

Transformation

Metamorphism

✔ ✘

Types of Metamorphism

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

Burial Metamorphism, Cataclastic Metamorphism, Regional Metamorphism

Weathering

✔ ✘

Types of Weathering

Erosion

✔ ✘

Types of Erosion

Properties

Physical Properties

Hardness

13.5-4

1 7

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Grain Size

Fine Grained

Medium to Fine Coarse Grained

Fracture

Conchoidal

Streak

Black

White

Porosity

Less Porous

Luster

Greasy

Vitreous and Pearly

Compressive Strength

225.00 N/mm²140.00 N/mm²

0.15 450

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Cleavage

Perfect

Toughness

Specific Gravity

2.862.8-3

0 8.4

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Transparency

Opaque

Transparent to Translucent

Density

2.8-2.9 g/cm³2.8-2.9 g/cm³

0 1400

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Thermal Properties

Specific Heat Capacity

0.88 kJ/Kg K0.92 kJ/Kg K

0.14 3.2

👆🏻

Resistance

Heat Resistant, Pressure Resistant

Heat Resistant, Pressure Resistant, Wear 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

Morocco, Namibia

Europe

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

Austria, Italy, Romania, Spain, Switzerland

Others

Deposits in Western Continents

North America

Canada, USA

Mexico, USA

South America

Colombia

Brazil, Colombia

Deposits in Oceania Continent

Australia

Central Australia, New Zealand, Queensland

New South Wales, Queensland, Yorke Peninsula

All about Soapstone and Jasperoid Properties

Know all about Soapstone and Jasperoid properties here. All properties of rocks are important as they define the type of rock and its application. Soapstone belongs to Metamorphic Rocks while Jasperoid belongs to Sedimentary Rocks.Texture of Soapstone is Polished whereas that of Jasperoid is Earthy. Soapstone appears Dull, Banded and Foilated and Jasperoid appears Glassy or Pearly. The luster of Soapstone is greasy while that of Jasperoid is vitreous and pearly. Soapstone is available in black, black to grey, green, grey colors whereas Jasperoid is available in black, brown, green, grey, pink, white colors. The commercial uses of Soapstone are cemetery markers, creating artwork, gemstone, jewelry, manufacture of soap, solvents, dyes, plastics and fibres, production of lime, source of magnesia (mgo) and that of Jasperoid are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo).