Hawaiite

Hawaiite is an olivine basalt with a composition between alkali basalt and mugearite.^[1] It was first used as a name for some lavas found on the island of Hawaii.

In gemology, hawaiite is a colloquial term for Hawaii-originated peridot, which is a gem-quality olivine mineral.

References

↑ Peterson, Gordon A. MacDonald, Agatin T. Abbott, Frank L. (1983). Volcanoes in the sea : the geology of Hawaii (2nd ed.). Honolulu: University of Hawaii press. pp. 127–129, 150–152. ISBN 9780824808327.

Types of basalts

Basalts by tectonic setting	Flood basalt Mid-ocean ridge basalt Ocean island basalt Volcanic arc basalt

Basalts by form and flow	Columnar basalt Pillow basalt Aa lava Pahoehoe lava

Basalts by chemistry	Tholeiitic basalt Calc-alkaline basalt Alkali basalt Trachybasalt Hawaiite Mugearite Picrite

Important minerals	Olivine Pyroxene Plagioclase Amphibole Magnetite Ilmenite Quartz Cristobalite Trydimite

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