Boninite and Cataclasite
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
Cataclasite is a type of cataclastic rock that is formed by fracturing and comminution during faulting. It is normally cohesive and non-foliated, consisting of angular clasts in a finer-grained matrix
History
Origin
Japan
Swiss Alps, Europe
Discoverer
Unknown
Michael Tellinger
Etymology
From its occurrence in the Izu-Bonin arc south of Japan
From the Italian word cataclasi
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
Clastic
Color
Bluish - Grey, Brown, Colourless, Green, Grey
Brown, Green, White, Yellow
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
Dull and Banded
Uses
Architecture
Interior Uses
Decorative Aggregates, Homes, Kitchens
Decorative Aggregates, Homes
Exterior Uses
Garden Decoration, Office Buildings
As Building Stone, As Facing Stone, 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, Building houses or walls, Cement Manufacture, Construction Aggregate, for Road Aggregate
Medical Industry
Not Yet Used
Not Yet Used
Antiquity Uses
Artifacts
Artifacts
Other Uses
Commercial Uses
An Oil and Gas Reservoir, Cemetery Markers, Creating Artwork, Soil Conditioner, Source of Magnesia (MgO)
Commemorative Tablets, Creating Artwork
Types
Types
Not Available
Protocataclasite, Mesocataclasite, Ultracataclasite and Foliated cataclasite
Features
Available in Lots of Colors and Patterns, High Mg content, Is one of the oldest rock
Easily splits into thin plates, Is one of the oldest rock
Archaeological Significance
Monuments
Not Yet Used
Not Yet Used
Famous Monuments
Not Applicable
Not Applicable
Sculpture
Not Yet Used
Not Yet Used
Famous Sculptures
Not Applicable
Not Applicable
Pictographs
Not Used
Used
Petroglyphs
Not Used
Used
Figurines
Not Yet Used
Not Yet 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.
Cataclasiste rocks mainly form by pressure deep under the Earth's surface, 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
Albite, Apatite, Augite, Biotite, Calcite, Enstatite, Epidote, Feldspar, Micas, Muscovite or Illite, Pyroxene, Quartz
Compound Content
Silicon Dioxide
Silicon Dioxide
Transformation
Metamorphism
Yes
No
Types of Metamorphism
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Regional Metamorphism
Not Applicable
Weathering
Yes
Yes
Types of Weathering
Biological Weathering
Mechanical Weathering
Erosion
Yes
Yes
Types of Erosion
Chemical Erosion, Coastal Erosion, Wind Erosion
Coastal Erosion, Wind Erosion
Properties
Physical Properties
Hardness
7
3-4
Grain Size
Fine Grained
Fine Grained
Fracture
Uneven
NA
Streak
White
Black
Porosity
Less Porous
Less Porous
Luster
Vitreous
Vitreous
Cleavage
Not Available
Not Available
Toughness
1.1
Not Available
Specific Gravity
2.5-2.8
2.1
Transparency
Opaque
Translucent to Opaque
Density
Not Available
2.9-3.1 g/cm3
Thermal Properties
Resistance
Heat Resistant, Impact Resistant, Pressure Resistant, Wear Resistant
Heat Resistant, Impact Resistant, Pressure Resistant
Reserves
Deposits in Eastern Continents
Asia
Not Available
China, India, Russia, Saudi Arabia, South Korea
Africa
South Africa
Egypt, Ethiopia, Kenya, Madagascar, Morocco, South Africa
Europe
England, Finland, United Kingdom
England, Finland, France, Spain, United Kingdom
Others
Antarctica, Greenland
Not Yet Found
Deposits in Western Continents
North America
USA
Canada, USA
South America
Colombia, Uruguay
Argentina, Colombia
Deposits in Oceania Continent
Australia
New Zealand, Western Australia
Central Australia, Western Australia
All about Boninite and Cataclasite Properties
Know all about Boninite and Cataclasite properties here. All properties of rocks are important as they define the type of rock and its application. Boninite belongs to Igneous Rocks while Cataclasite belongs to Metamorphic Rocks.Texture of Boninite is Aphanitic to Porphyritic whereas that of Cataclasite is Clastic. Boninite appears Dull and Soft and Cataclasite appears Dull and Banded. The luster of Boninite and Cataclasite is vitreous. Boninite is available in bluish - grey, brown, colourless, green, grey colors whereas Cataclasite is available in brown, green, white, yellow 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 Cataclasite are commemorative tablets, creating artwork.
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