Jadeitite and Chalk
Definition
Definition
Jadeitite is a metamorphic rock usually found in blueschist grade metamorphic terrains
Chalk is a soft, white, powdery limestone consisting mainly of fossil shells of foraminifers
History
Discoverer
Unknown
Unknown
Etymology
From pyroxene mineral jadeite
From old English cealc chalk, lime, plaster; pebble, from Greek khalix small pebble, in English transferred to the opaque, white, soft limestone
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
Texture
Earthy
Clastic or Non-Clastic
Color
Black, Brown, Colourless, Green, Grey, White
Grey, White, Yellow
Maintenance
Less
Less
Durability
Durable
Durable
Water Resistant
Yes
No
Scratch Resistant
No
No
Stain Resistant
No
No
Wind Resistant
No
No
Acid Resistant
No
No
Appearance
Rough and Dull
Soft
Uses
Architecture
Interior Uses
Decorative Aggregates, Homes, Interior Decoration
Decorative Aggregates, Homes, Interior Decoration
Exterior Uses
Garden Decoration, Office Buildings, Paving Stone
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration
Other Architectural Uses
Curbing
Powder
Industry
Construction Industry
As Dimension Stone, Cutting Tool, Knives
As Dimension Stone, Cement Manufacture, Construction Aggregate, for Road Aggregate, Making natural cement, raw material for manufacture of quicklime and slaked lime, Source of calcium
Medical Industry
Not Yet Used
Not Yet Used
Antiquity Uses
Artifacts, Jewellery, Monuments, Sculpture
Artifacts, Monuments, Sculpture, Small Figurines
Other Uses
Commercial Uses
Commemorative Tablets, Creating Artwork, Jewelry
Alumina Refineries, Creating Artwork, Drawing on blackboards, Gymnasts, athletes and mountain climbers use for grip, In aquifers, Paper Industry, Production of Lime, Raw material for manufacture of quicklime, slaked lime, Soil Conditioner, Whiting, Whiting material in toothpaste, paint and paper
Types
Types
Not Available
Not Available
Features
Host Rock for Lead
Clasts are smooth to touch, Is one of the oldest rock, Smooth to touch, Very fine grained 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
Formation
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.
Chalk is formed from lime mud, which accumulates on the sea floor which is then transformed into rock by geological processes.
Composition
Mineral Content
Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides
Calcite, Clay, Clay Minerals, Quartz, Sand
Compound Content
Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur
Ca, NaCl, CaO
Transformation
Metamorphism
Yes
No
Types of Metamorphism
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism
Not Applicable
Weathering
No
Yes
Types of Weathering
Not Applicable
Biological Weathering, Chemical Weathering
Erosion
Yes
Yes
Types of Erosion
Coastal Erosion, Water Erosion, Wind Erosion
Chemical Erosion, Coastal Erosion, Water Erosion
Properties
Physical Properties
Hardness
3-5
1
Grain Size
Very fine-grained
Very fine-grained
Fracture
Uneven
Not Available
Streak
White, Greenish White or Grey
White
Porosity
Less Porous
Highly Porous
Luster
Waxy and Dull
Dull
Compressive Strength
310.00 N/mm2
2
Not Available
Cleavage
Irregular
Non-Existent
Toughness
7
1
Specific Gravity
2.79-3
2.3-2.4
Transparency
Opaque
Opaque
Density
2.5-3 g/cm3
2.49-2.50 g/cm3
Thermal Properties
Specific Heat Capacity
0.95 kJ/Kg K
9
0.90 kJ/Kg K
12
Resistance
Heat Resistant, Water Resistant
Heat Resistant
Reserves
Deposits in Eastern Continents
Asia
India, Saudi Arabia, Singapore, South Korea
Brunei, India, Indonesia, Malaysia, Singapore, Thailand, Vietnam
Africa
Ethiopia, Western Africa
Cameroon, Chad, Ghana, Kenya, Malawi, Sudan, Tanzania, Togo, Zambia, Zimbabwe
Europe
England, Georgia, Switzerland, United Kingdom
England, France, Germany, Spain, United Kingdom
Others
Not Yet Found
Not Yet Found
Deposits in Western Continents
North America
Canada
Canada, USA
South America
Colombia
Colombia
Deposits in Oceania Continent
Australia
Central Australia, New South Wales, New Zealand, Western Australia
Adelaide, New Zealand, Queensland, Tonga, Victoria, Yorke Peninsula
All about Jadeitite and Chalk Properties
Know all about Jadeitite and Chalk properties here. All properties of rocks are important as they define the type of rock and its application. Jadeitite belongs to Metamorphic Rocks while Chalk belongs to Sedimentary Rocks.Texture of Jadeitite is Earthy whereas that of Chalk is Clastic or Non-Clastic. Jadeitite appears Rough and Dull and Chalk appears Soft. The luster of Jadeitite is waxy and dull while that of Chalk is dull. Jadeitite is available in black, brown, colourless, green, grey, white colors whereas Chalk is available in grey, white, yellow colors. The commercial uses of Jadeitite are commemorative tablets, creating artwork, jewelry and that of Chalk are alumina refineries, creating artwork, drawing on blackboards, gymnasts, athletes and mountain climbers use for grip, in aquifers, paper industry, production of lime, raw material for manufacture of quicklime, slaked lime, soil conditioner, whiting, whiting material in toothpaste, paint and paper.
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