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.

It occurs during the later stages of volcanic activity on oceanic islands such as Hawaii,[2] which happens to be when the alkali metals are most present.[3]

In gemology, hawaiite is a colloquial term for Hawaii-originated peridot, which is a gem-quality form of the mineral olivine.[4]

  1. ^ MacDonald, Gordon A.; Abbott, Agatin T.; Peterson, 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.
  2. ^ Hazlett, R.W.; Hyndman, D.W. (1996). Roadside Geology of Hawaii. Missoula: Mountain Press. p. 13. ISBN 0-87842-344-3.
  3. ^ "Hawaiite: volcanic rock - pictures and overview". www.sandatlas.org. Retrieved 2018-04-07.
  4. ^ Manutchehr-Danai, M. (2000). "Hawaiite". Dictionary of Gems and Gemology. Berlin: Springer-Verlag. p. 223. doi:10.1007/978-3-662-04288-5. ISBN 978-3-662-04290-8.