Definition
Definition
It is a metamorphic magnesium rich rock because it is composed of the mineral talc
History
Origin
USA
Discoverer
Unknown
Etymology
From 17th century, because of its greasy feel and use like a soap
Class
Metamorphic Rocks
Sub-Class
Durable Rock, Soft Rock
Family
Group
-
Other Categories
Fine Grained Rock, Opaque Rock
Texture
Texture
Polished
Color
Black, Black to Grey, Green, Grey
Maintenance
Less
Durability
Durable
Water Resistant
✔
✘
81% - Metamorphic Rocks Rocks have it !
Scratch Resistant
✔
✘
65% - Metamorphic Rocks Rocks
Stain Resistant
✔
✘
42% - Metamorphic Rocks Rocks
Wind Resistant
✔
✘
19% - Metamorphic Rocks Rocks
Acid Resistant
✔
✘
15% - Metamorphic Rocks Rocks
Appearance
Dull, Banded and Foilated
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
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)
Types
Types
Metamorphic rock
Features
Host Rock for Lead
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
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.
Composition
Mineral Content
Albite, Apatite, Biotite, Calcite, Carbonate, Clay Minerals, Hornblende, Ilmenite, Micas, Plagioclase, Pyroxene, Quartz
Compound Content
CaO, Mg, MgO
Transformation
Metamorphism
✔
✘
50% - Metamorphic Rocks Rocks have it !
Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism, Regional Metamorphism
Weathering
✔
✘
65% - Metamorphic Rocks Rocks
Types of Weathering
-
Erosion
✔
✘
77% - Metamorphic Rocks Rocks
Types of Erosion
-
Properties
Physical Properties
Hardness
1
1
7
👆🏻
Grain Size
Fine Grained
Fracture
Conchoidal
Streak
Black
Porosity
Less Porous
Luster
Greasy
Compressive Strength
225.00 N/mm2
Rank: 8 (Overall)
0.15
450
👆🏻
Cleavage
Perfect
Toughness
1
Specific Gravity
2.86
0
8.4
👆🏻
Transparency
Opaque
Density
2.8-2.9 g/cm3
0
1400
👆🏻
Thermal Properties
Specific Heat Capacity
0.88 kJ/Kg K
Rank: 13 (Overall)
0.14
3.2
👆🏻
Resistance
Heat Resistant, Pressure Resistant
Reserves
Deposits in Eastern Continents
Asia
China, India, Indonesia, Japan, North Korea, Russia, Saudi Arabia, Singapore, South Korea, Sri Lanka, Tajikistan, Thailand
Africa
Egypt, Ethiopia, Ghana, South Africa, Western Africa
Europe
Austria, England, Finland, France, Germany, Greece, Spain, Sweden, Switzerland, United Kingdom
Others
-
Deposits in Western Continents
North America
Canada, USA
South America
Colombia
Deposits in Oceania Continent
Australia
Central Australia, New Zealand, Queensland