Definition
A hydration and metamorphic transformation of ultramafic rock from the Earth's mantle is called as serpentinization, a group of minerals is formed by serpentinization compose rock 'serpentinite'.
  
Argillites are highly compact sedimentary or slightly metamorphosed rocks that consist largely or wholly of particles of clay or silt but lack the fissility of shale or the cleavage characteristic of slate
  
History
  
  
Origin
USA
  
Unknown
  
Discoverer
Unknown
  
Unknown
  
Etymology
From English word serpentinization.
  
From Latin Argilla (clay) and -ite in English which became agrilla+ -ite = Argillite
  
Class
Metamorphic Rocks
  
Sedimentary Rocks
  
Sub-Class
Durable Rock, Medium Hardness Rock
  
Durable Rock, Soft Rock
  
Family
  
  
Group
Not Applicable
  
Not Applicable
  
Other Categories
Fine Grained Rock, Opaque Rock
  
Fine Grained Rock, Opaque Rock
  
Texture
Earthy
  
Clastic, Polished
  
Color
Black, Brown, Colourless, Green, Grey, White
  
Dark Grey to Black, Pink, Red, White
  
Maintenance
Less
  
Less
  
Durability
Durable
  
Durable
  
Water Resistant
Yes
  
No
  
Scratch Resistant
No
  
Yes
  
Stain Resistant
Yes
  
Yes
  
Wind Resistant
No
  
Yes
  
Acid Resistant
No
  
Yes
  
Appearance
Rough and Dull
  
Rough and Dull
  
Architecture
  
  
Interior Uses
Decorative Aggregates, Interior Decoration
  
Decorative Aggregates, Homes, Interior Decoration
  
Exterior Uses
As Building Stone, Paving Stone, Garden Decoration, Office Buildings
  
As Building Stone, Garden Decoration, Office Buildings
  
Other Architectural Uses
Curbing
  
Curbing, Whetstones
  
Industry
  
  
Construction Industry
As Dimension Stone, Cement Manufacture, for Road Aggregate, Making natural cement
  
Used for flooring, stair treads, borders and window sills.
  
Medical Industry
Not Yet Used
  
Not Yet Used
  
Antiquity Uses
Artifacts, Jewellery, Monuments, Sculpture
  
Artifacts, Monuments, Sculpture
  
Other Uses
  
  
Commercial Uses
Commemorative Tablets, Creating Artwork
  
Fire resistant, Used to manufracture paperweights and bookends
  
Types
Jadeitite
  
Not Available
  
Features
Host Rock for Lead
  
Is one of the oldest rock
  
Archaeological Significance
  
  
Monuments
Used
  
Used
  
Famous Monuments
Data Not Available
  
Data Not Available
  
Sculpture
Used
  
Used
  
Famous Sculptures
Data Not Available
  
Data Not Available
  
Pictographs
Used
  
Used
  
Petroglyphs
Used
  
Used
  
Figurines
Used
  
Used
  
Fossils
Absent
  
Present
  
Formation
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Serpentinite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.
  
An argillite is a fine-grained sedimentary rock mainly composed of clay particles which forms from lithified muds which contain variable amounts of silt-sized particles.
  
Composition
  
  
Mineral Content
Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides
  
Biotite, Chlorite, Feldspar, Micas, Muscovite or Illite, Plagioclase, Pyrite, Quartz
  
Compound Content
Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur
  
Iron(III) Oxide, Potassium Oxide, MgO, Silicon Dioxide
  
Transformation
  
  
Metamorphism
Yes
  
No
  
Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Hydrothermal Metamorphism, Impact Metamorphism
  
Not Applicable
  
Weathering
No
  
Yes
  
Types of Weathering
Not Applicable
  
Biological Weathering
  
Erosion
Yes
  
Yes
  
Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Wind Erosion
  
Chemical Erosion
  
Physical Properties
  
  
Hardness
3-5
  
2-3
  
Grain Size
Very fine-grained
  
Fine Grained
  
Fracture
Uneven
  
Conchoidal to Uneven
  
Streak
White, Greenish White or Grey
  
White to Grey
  
Porosity
Less Porous
  
Highly Porous
  
Luster
Waxy and Dull
  
Waxy and Dull
  
Compressive Strength
310.00 N/mm
2
  
2
Not Available
  
Cleavage
Irregular
  
Slaty
  
Toughness
7
  
2.6
  
Specific Gravity
2.79-3
  
2.56-2.68
  
Transparency
Opaque
  
Opaque
  
Density
2.5-3 g/cm3
  
2.54-2.66 g/cm3
  
Thermal Properties
  
  
Specific Heat Capacity
0.95 kJ/Kg K
  
9
0.87 kJ/Kg K
  
14
Resistance
Heat Resistant
  
Heat Resistant, Impact Resistant
  
Deposits in Eastern Continents
  
  
Asia
India, Saudi Arabia, Singapore, South Korea
  
Bangladesh, China, India, Russia
  
Africa
Ethiopia, Western Africa
  
Ethiopia, Kenya, Morocco, South Africa, Tanzania
  
Europe
England, Georgia, Switzerland, United Kingdom
  
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
  
Others
Not Yet Found
  
Not Yet Found
  
Deposits in Western Continents
  
  
North America
Canada
  
USA
  
South America
Colombia
  
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
  
Deposits in Oceania Continent
  
  
Australia
Central Australia, New South Wales, New Zealand, Western Australia
  
New South Wales, New Zealand, Queensland, Victoria, Western Australia