Shale and Jadeitite
Definition
Definition
Shale is a fine-grained sedimentary rock which is formed by the compaction of silt and clay-size mineral particles
Jadeitite is a metamorphic rock usually found in blueschist grade metamorphic terrains
History
Discoverer
Unknown
Unknown
Etymology
From German Schalstein laminated limestone, and Schalgebirge layer of stone in stratified rock. From Old English scealu in its base sense of- thing that divides or separate,
From pyroxene mineral jadeite
Class
Sedimentary Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Family
Group
Not Applicable
Not Applicable
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
Texture
Texture
Clastic, Splintery
Earthy
Color
Black, Brown, Buff, Green, Grey, Red, Yellow
Black, Brown, Colourless, Green, Grey, White
Maintenance
More
Less
Durability
Durable
Durable
Water Resistant
No
Yes
Scratch Resistant
No
No
Stain Resistant
No
No
Wind Resistant
No
No
Acid Resistant
No
No
Appearance
Muddy
Rough and Dull
Uses
Architecture
Interior Uses
Decorative Aggregates, Homes, Interior Decoration
Decorative Aggregates, Homes, Interior Decoration
Exterior Uses
As Building Stone, As Facing Stone, Office Buildings
Garden Decoration, Office Buildings, Paving Stone
Other Architectural Uses
Curbing
Curbing
Industry
Construction Industry
Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, Raw material for the manufacture of mortar
As Dimension Stone, Cutting Tool, Knives
Medical Industry
Not Yet Used
Not Yet Used
Antiquity Uses
Artifacts, Sculpture
Artifacts, Jewellery, Monuments, Sculpture
Other Uses
Commercial Uses
Creating Artwork, Pottery
Commemorative Tablets, Creating Artwork, Jewelry
Types
Types
Red Shale, Black Shale, Green Shale, Grey Shale and Yellow Shale
Not Available
Features
Easily splits into thin plates, Generally rough to touch, Very fine grained rock
Host Rock for Lead
Archaeological Significance
Monuments
Used
Used
Famous Monuments
Jantar Mantar in India
Data Not Available
Sculpture
Used
Used
Famous Sculptures
Data Not Available
Data Not Available
Pictographs
Used
Used
Petroglyphs
Used
Used
Figurines
Used
Used
Fossils
Present
Absent
Formation
Formation
Shale forms when very fine-grained clay particles are deposited in water which settle at the bottom of water bodies. They are later compacted hence forming shale.
Due to change in environmental conditions, rocks are heated and pressurized deep inside the Earth's surface. Jadeitite is formed from the extreme heat caused by magma or by the intense collisions and friction of tectonic plates.
Composition
Mineral Content
Albite, Biotite, Calcite, Chert, Chlorite, Dolomite, Hematite, Micas, Muscovite or Illite, Pyrite, Quartz, Silica, Sulfides
Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides
Compound Content
Ca, Fe, Mg, Silicon Dioxide, Sodium
Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur
Transformation
Metamorphism
No
Yes
Types of Metamorphism
Not Applicable
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism
Weathering
Yes
No
Types of Weathering
Biological Weathering, Chemical Weathering, Mechanical Weathering
Not Applicable
Erosion
Yes
Yes
Types of Erosion
Chemical Erosion, Coastal Erosion, Glacier Erosion
Coastal Erosion, Water Erosion, Wind Erosion
Properties
Physical Properties
Hardness
3
3-5
Grain Size
Very fine-grained
Very fine-grained
Fracture
Not Available
Uneven
Streak
White
White, Greenish White or Grey
Porosity
Highly Porous
Less Porous
Luster
Dull
Waxy and Dull
Compressive Strength
95.00 N/mm2
20
310.00 N/mm2
2
Cleavage
Slaty
Irregular
Toughness
2.6
7
Specific Gravity
2.2-2.8
2.79-3
Transparency
Opaque
Opaque
Density
2.4-2.8 g/cm3
2.5-3 g/cm3
Thermal Properties
Specific Heat Capacity
0.39 kJ/Kg K
23
0.95 kJ/Kg K
9
Resistance
Heat Resistant, Impact Resistant
Heat Resistant, Water Resistant
Reserves
Deposits in Eastern Continents
Asia
Bangladesh, China, India, Russia
India, Saudi Arabia, Singapore, South Korea
Africa
Ethiopia, Kenya, Morocco, South Africa, Tanzania
Ethiopia, Western Africa
Europe
Austria, France, Germany, Greece, Italy, Romania, Scotland, Spain, Switzerland
England, Georgia, Switzerland, United Kingdom
Others
Not Yet Found
Not Yet Found
Deposits in Western Continents
North America
USA
Canada
South America
Bolivia, Chile, Colombia, Ecuador, Peru, Venezuela
Colombia
Deposits in Oceania Continent
Australia
New South Wales, New Zealand, Queensland, Victoria, Western Australia
Central Australia, New South Wales, New Zealand, Western Australia
All about Shale and Jadeitite Properties
Know all about Shale and Jadeitite properties here. All properties of rocks are important as they define the type of rock and its application. Shale belongs to Sedimentary Rocks while Jadeitite belongs to Metamorphic Rocks.Texture of Shale is Clastic, Splintery whereas that of Jadeitite is Earthy. Shale appears Muddy and Jadeitite appears Rough and Dull. The luster of Shale is dull while that of Jadeitite is waxy and dull. Shale is available in black, brown, buff, green, grey, red, yellow colors whereas Jadeitite is available in black, brown, colourless, green, grey, white colors. The commercial uses of Shale are creating artwork, pottery and that of Jadeitite are commemorative tablets, creating artwork, jewelry.
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