Definition
Origin
Discoverer
Etymology
Class
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Other Categories
Hawaiite is volcanic rock that resembles basalt. It is an olivine basalt with intermediate composition between alkali olivine and mugearite
Durable Rock, Medium Hardness Rock
Anorthosite is a granular igneous rock composed largely of labradorite or plagioclase
From French anorthose plagioclase + -ite1
Durable Rock, Medium Hardness Rock
Coarse Grained Rock, Opaque Rock