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Hawaiite
Hawaiite

Boninite
Boninite



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1 Definition
1.1 Definition
Hawaiite is volcanic rock that resembles basalt. It is an olivine basalt with intermediate composition between alkali olivine and mugearite
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
1.2 History
1.2.1 Origin
Hawaii Islands
Japan
1.2.2 Discoverer
Joseph Iddings
Unknown
1.3 Etymology
From Hawaii Islands
From its occurrence in the Izu-Bonin arc south of Japan
1.4 Class
Igneous Rocks
Igneous Rocks
1.4.1 Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
1.5 Family
1.5.1 Group
Volcanic
Volcanic
1.6 Other Categories
Opaque Rock
Fine Grained Rock, Opaque Rock