Boninite and Jadeitite
Definition
Definition
Boninite is a mafic extrusive rock which is high in magnesium and silica content, formed in fore-arc environments, typically during the early stages of subduction
Jadeitite is a metamorphic rock usually found in blueschist grade metamorphic terrains
History
Origin
Japan
Unknown
Discoverer
Unknown
Unknown
Etymology
From its occurrence in the Izu-Bonin arc south of Japan
From pyroxene mineral jadeite
Class
Igneous Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
Volcanic
Not Applicable
Other Categories
Fine Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock
Texture
Texture
Aphanitic to Porphyritic
Earthy
Color
Bluish - Grey, Brown, Colourless, Green, Grey
Black, Brown, Colourless, Green, Grey, White
Maintenance
Less
Less
Durability
Durable
Durable
Water Resistant
No
Yes
Scratch Resistant
Yes
No
Stain Resistant
Yes
No
Wind Resistant
Yes
No
Acid Resistant
No
No
Appearance
Dull and Soft
Rough and Dull
Uses
Architecture
Interior Uses
Decorative Aggregates, Homes, Kitchens
Decorative Aggregates, Homes, Interior Decoration
Exterior Uses
Garden Decoration, Office Buildings
Garden Decoration, Office Buildings, Paving Stone
Other Architectural Uses
Not Yet Used
Curbing
Industry
Construction Industry
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
As Dimension Stone, Cutting Tool, Knives
Medical Industry
Not Yet Used
Not Yet Used
Antiquity Uses
Artifacts
Artifacts, Jewellery, Monuments, Sculpture
Other Uses
Commercial Uses
An Oil and Gas Reservoir, Cemetery Markers, Creating Artwork, Soil Conditioner, Source of Magnesia (MgO)
Commemorative Tablets, Creating Artwork, Jewelry
Types
Types
Not Available
Not Available
Features
Available in Lots of Colors and Patterns, High Mg content, Is one of the oldest rock
Host Rock for Lead
Archaeological Significance
Monuments
Not Yet Used
Used
Famous Monuments
Not Applicable
Data Not Available
Sculpture
Not Yet Used
Used
Famous Sculptures
Not Applicable
Data Not Available
Pictographs
Not Used
Used
Petroglyphs
Not Used
Used
Figurines
Not Yet Used
Used
Fossils
Absent
Absent
Formation
Formation
Boninite is a type of Igneous rock which is formed through the cooling and solidification of lava or existing rocks.
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
Amphibole, Apatite, Biotite, Feldspar, Garnet, Hornblade, Ilmenite
Carbonate, Magnetite, Pyrrhotite, Serpentine, Sulfides
Compound Content
Silicon Dioxide
Ca, CaO, Carbon Dioxide, KCl, MgO, Sulfur Dioxide, Sulphur
Transformation
Metamorphism
Yes
Yes
Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism
Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism
Weathering
Yes
No
Types of Weathering
Biological Weathering
Not Applicable
Erosion
Yes
Yes
Types of Erosion
Chemical Erosion, Coastal Erosion, Wind Erosion
Coastal Erosion, Water Erosion, Wind Erosion
Properties
Physical Properties
Hardness
7
3-5
Grain Size
Fine Grained
Very fine-grained
Fracture
Uneven
Uneven
Streak
White
White, Greenish White or Grey
Porosity
Less Porous
Less Porous
Luster
Vitreous
Waxy and Dull
Compressive Strength
Not Available
310.00 N/mm2
2
Cleavage
Not Available
Irregular
Toughness
1.1
7
Specific Gravity
2.5-2.8
2.79-3
Transparency
Opaque
Opaque
Density
Not Available
2.5-3 g/cm3
Thermal Properties
Specific Heat Capacity
Not Available
0.95 kJ/Kg K
9
Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Water Resistant
Reserves
Deposits in Eastern Continents
Asia
Not Available
India, Saudi Arabia, Singapore, South Korea
Africa
South Africa
Ethiopia, Western Africa
Europe
England, Finland, United Kingdom
England, Georgia, Switzerland, United Kingdom
Others
Antarctica, Greenland
Not Yet Found
Deposits in Western Continents
North America
USA
Canada
South America
Colombia, Uruguay
Colombia
Deposits in Oceania Continent
Australia
New Zealand, Western Australia
Central Australia, New South Wales, New Zealand, Western Australia
All about Boninite and Jadeitite Properties
Know all about Boninite and Jadeitite properties here. All properties of rocks are important as they define the type of rock and its application. Boninite belongs to Igneous Rocks while Jadeitite belongs to Metamorphic Rocks.Texture of Boninite is Aphanitic to Porphyritic whereas that of Jadeitite is Earthy. Boninite appears Dull and Soft and Jadeitite appears Rough and Dull. The luster of Boninite is vitreous while that of Jadeitite is waxy and dull. Boninite is available in bluish - grey, brown, colourless, green, grey colors whereas Jadeitite is available in black, brown, colourless, green, grey, white colors. The commercial uses of Boninite are an oil and gas reservoir, cemetery markers, creating artwork, soil conditioner, source of magnesia (mgo) and that of Jadeitite are commemorative tablets, creating artwork, jewelry.
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