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]
^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.
^Hazlett, R.W.; Hyndman, D.W. (1996). Roadside Geology of Hawaii. Missoula: Mountain Press. p. 13. ISBN 0-87842-344-3.
^"Hawaiite: volcanic rock - pictures and overview". www.sandatlas.org. Retrieved 2018-04-07.
^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.
Hawaiite is an olivine basalt with a composition between alkali basalt and mugearite. It was first used as a name for some lavas found on the island of...
and analcitic series.: Ch6 The sodic series evolves through hawaiite or nepheline hawaiite through mugearite or nepheline mugearite and benmoreite or nepheline...
most common rock on Mount Takahe, phonolite being less common. Basanite, hawaiite, and mugearite are uncommon, but the occurrence of benmoreite and pantellerite...
the MEVC are mafic alkali basalts and hawaiites, which comprise about 60% of the volcanic complex. MEVC hawaiites are thought to be the product of partial...
Eyjafjallajökull. An origin by fractionation from basanite through nepheline hawaiite to nepheline benmoreite has been demonstrated for a volcanic suite in the...
rock – A volcanic rock with a composition between basalt and trachyte Hawaiite – Volcanic rock – a sodic type of trachybasalt, typically formed by ocean...
Trilogy. The island is composed mostly of basalt, mostly alkali basalt and hawaiites, and to a lesser extent mugearites. The island has a population of 335...
rocks are of basaltic type, consisting mostly of alkaline basalts, some hawaiites, and some gabbro intrusions, especially on the islet Toopua. They come...
eruptions of highly mobile lava flows. Volcanic rocks such as alkali basalt, hawaiite, trachybasalt, benmoreite, tristanite, mugearite, trachyte, comendite and...
main volcanic rocks of the Big Raven Formation are alkali basalts and hawaiites, although a small volume of trachyte comprises the Sheep Track Member...
further divided into sodium-rich hawaiite and potassium-rich potassic trachybasalt, with wt% Na2O > K2O + 2 for hawaiite. The intrusive equivalent of trachybasalt...
from Terevaka united it to the larger whole. The island is dominated by hawaiite and basalt flows which are rich in iron and show affinity with igneous...
Saudi Arabia. These mountains contrast with the darker appearance of the hawaiite lava flows and domes which dominate the lava fields, such as Jabal Qidr...
approximately 50 km2 or less of volcanic cones and lava flows. The basanite to hawaiite basaltic flows contain xenoliths of peridotite. The Peridot Mesa vent is...
decide. Ph (Phonolite) S1 (Trachybasalt)—*Sodic and potassic variants are Hawaiite and Potassic Trachybasalt. S2 (Basaltic trachyandesite)—*Sodic and potassic...
pile of hawaiite flows that are four to eight times thicker than those of the Rainbow Range. The abnormal thicknesses of the Anahim Peak hawaiite flows...
igneous rocks. These are a mix of Carboniferous age basalts, mugearite and hawaiite lava flows cut by a similarly aged WSW-ENE aligned dyke of alkali olivine...
between 250,000 and 70–65,000 years ago. The most recent volcanic flows are hawaiites and mugearites: they are the post-shield Laupāhoehoe Volcanics, erupted...
Formation. The Raspberry Formation consists of flat-lying alkali basalt and hawaiite flows. These flows are rusty brown and are interbedded with reddish-brown...
south of the highlands. The Nido Formation consists of alkali basalt and hawaiite lava flows that issued from multiple eruptive centres. K–Ar dating has...
Magellan Seamounts, it is a shield volcano that has erupted alkali basalt and hawaiite 87 million years ago, but may have continued erupting into the Miocene...
through them. Rotuma is a shield volcano made of alkali-olivine basalt and hawaiite, with many small cones. It reaches 256 metres (840 ft) above sea level...
kilometres (84 cu mi), additional volcanic rocks are basaltic andesite, hawaiite and tephrite. Basaltic rocks range from alkali basalt to tholeiite. Potassium-argon...
Cordilleran Volcanic Province are mantle-derived alkali olivine basalt, lesser hawaiite and basanite, which form the large shield volcanoes and small cinder cones...
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