Websterite is ultramafic igneous rock, a type of pyroxenite that has less than 5% olivine and roughly equal proportions of orthopyroxene and clinopyroxene...

Pyroxenites are classified into clinopyroxenites, orthopyroxenites, and the websterites which contain both types of pyroxenes (see diagram below). Closely allied...

Vitrophyre – Glassy volcanic rock - Glassy igneous rock with phenocrysts Websterite – Ultramafic and ultrabasic rock – A type of pyroxenite, composed of clinoproxene...

for its aluminium content. It is also known as alley stone, halite and websterite (named after Orcadian geologist Thomas Webster). Aluminite is used by...

Benmoreite Trachybasalt Hawaiite Trachyte Troctolite Trondhjemite Tuff Websterite Wehrlite Sedimentary rock Argillite Arkose Banded iron formation Breccia...

harzburgite) garnet inclusions have less CaO. Eclogite and peridotite are the two main parental mantle rocks and wehrlite and websterite are minor types....

Antiquities and Geological Phenomena of the Isle of Wight (1816). The mineral websterite now known as aluminite was named after him. He died in London on 26 December...

Ultramafic-Mafic sequences' contact, and in the uppermost pyroxenite (bronzitite and websterite) units are economic concentrations of nickel, copper, cobalt, gold, and...

Uraninite: Joachimsthal, Austria-Hungary (now Jáchymov, Czech Republic) Websterite: Webster in North Carolina. Widgiemoolthalite: Widgiemooltha, Western...

1882–1948 mathematician Thomas Webster 1773–1844 geologist geologist who had websterite, now normally called aluminite, named after him Alexander Wilson 1714–1786...

089.36.00 W. The complex includes gabbro, pyroxenite, gabbronorite and websterite intrusive into granitic gneiss country rock. The ore minerals occur within...

Stikinia terrane. They consist of lherzolite, harzburgite, wehrlite, dunite, websterite and garnet composed pyroxenite. The highest and lowest temperatures recorded...

Boston City Council, serving until 1853. He was a moderately conservative Websterite Whig who was involved in the state party organization, serving on its...

chromium-spinel lherzolite, spinel clinopyroxenite, and rare ferroan websterite and spinel wehrlite. Xenoliths do not exist in the older lava flows. However...

clinopyroxenite, dunite, harzburgite, lherzolite, norite, pyroxenite and websterite have been reported as xenoliths. The early volcanic rocks of Mount Morning...

waters watringue watt watt-heure watté wattman wattmètre wavellite weber webstérite week-end "weekend" ( < Eng < Gmc) welche wellingtonia weltanschauung welter...

amphibole-containing peridotite, olivine and spinel pyroxenite, and websterite. In general, the composition resembles that of other Sudanese-Egyptian...

Koester, E.; Conceição, R.V.; Rieck, N. (January 2009). "The lherzolite–websterite xenolith suite from Northern Patagonia (Argentina): Evidence of mantle–melt...

melilite and nepheline basalts, basanites, melilite, nephelinite and websterite, and form an alkaline-nephelinite suite. The variations in composition...

divided itself into two factions – the Celestites and Dickensites, the Websterites and Phillipsites. Then came accusations and recriminations as to coincidences...

Denizens, Migrants. Routledge. p. 61. ISBN 978-1-135-10369-9. "Well Known Websterites". The Webster Museum. Retrieved 2022-11-06. "J. C. Peet Dies in Homestead...

meteorites, the shergottites. Several types of periodic rocks (lherzolites, websterites and harzburgites) can be found as inclusions in the basalt of tuff and...