Websterite
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webstérite — ● webstérite nom féminin Roche constituée d ortho et de clinopyroxène. ⇒WEBSTÉRITE, subst. fém. MINÉR. Synon. de aluminite. Un groupe assez important est celui des sulfates alumineux. Le premier est la webstérite ou sous sulfate d alumine… … Encyclopédie Universelle
websterite — /web steuh ruyt /, n. Mineral. aluminite. [named after T. Webster, 19th century Englishman; see ITE1] * * * … Universalium
websterite — noun A hydrous aluminium sulfate mineral with formula AlSO(OH)·7(HO). Syn: alley stone, aluminite … Wiktionary
websterite — /web steuh ruyt /, n. Mineral. aluminite. [named after T. Webster, 19th century Englishman; see ITE1] … Useful english dictionary
List of rock types — This page is intended as a list of all rock types. NOTOC A : Amphibolite: Andesite: Anorthosite : Anthracite: Aplite: Argillite: Arkose B : Banded iron formation: Basalt: Basanite: Blueschist: Boninite: Breccia C : Carbonatite: Cataclasite: Chalk … Wikipedia
Pyroxenite — A sample of the orthopyroxenite meteorite ALH84001 Pyroxenite is an ultramafic igneous rock consisting essentially of minerals of the pyroxene group, such as augite and diopside, hypersthene, bronzite or enstatite … Wikipedia
Thomas Webster (geologist) — Thomas Webster (1773 – December 26, 1844), Scottish geologist, was born in Orkney, and was educated at Aberdeen.He subsequently went to London and studied architecture, the Royal Institution in Albemarle Street being built from his design. In… … Wikipedia
Emory Washburn — Infobox Governor name= Emory Washburn imagesize=150px caption= order=22nd office= Governor of Massachusetts term start= January 12, 1854 term end= January 4, 1855 lieutenant= William C. Plunkett predecessor= John H. Clifford successor= Henry J.… … Wikipedia
Aluminite — is a hydrous aluminium sulfate mineral with formula: Al2SO4(OH)4·7(H2O). It is an earthy white to gray white monoclinic mineral which almost never exhibits crystal form. It forms botryoidal to mammillary clay like masses. It is very soft Mohs… … Wikipedia
Great Dyke — The Great Dyke is a linear geological feature that trends nearly north south through the center of Zimbabwe passing just to the west of the capital, Harare. It consists of a band of short, narrow ridges and hills spanning for approximately… … Wikipedia
