andalusite


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Related to andalusite: sillimanite

andalusite

[¦an·də′lü‚sīt]
(mineralogy)
Al2SiO5 A brown, yellow, green, red, or gray neosilicate mineral crystallizing in the orthorhombic system, usually found in metamorphic rocks.
References in periodicals archive ?
Tender notice number : SRU/MM/GTE/2016-17/ Andalusite IFICO dated 16-07-2016
The occurrence of andalusite and sillimanite in these rocks can be associated to a superimposed low-P/high-T thermal event, although the presence of these polymorphs implies pressure below the [Al.
In 2005, it was the world's leading producer of andalusite, chromite, ferrochrome, gold, platinum-group metals, vanadium and vermiculite, and the world's fifth ranked producer of industrial diamonds (Holmberg 2007).
The Model T's famous "any color as long as it's black" was replaced by a rainbow of shades, including Apple Green, Andalusite Blue, Thorne Brown, Yukon Yellow and Deep Ford Maroon.
A contact metamorphic assemblage is developed locally with randomly oriented biotite, andalusite, muscovite and rare cordierite.
Lines covered in the deal include salts, sulphur (except sublimed, precipitated and colloidal sulphur), natural graphite, quartz, silica and quartz sands, kaolin or other kaolinitic clays, bentonite, decolourising earths and Fuller's earth, fire-clay, andalusite, mullite, chamotte, microdol, natural calcium phosphates, natural barium sulphate, natural barium carbonate, gypsum, white asbestos, talc, natural arsenite, strontianite (not stronitium oxide), natural cryolite and chiolite, fluorspar, vermiculite, perlite and chlorites (unexpanded), and others.
The French petroleum company Total and its partners have begun production on the Andalusite field in the Dutch North Sea, 200 km off Den Helder.
This report examines international trade and worldwide market trends pertaining to andalusite, kyanite and sillimanite.
John Gallagher, trainer of Andalusite She came out of her win at Brighton in such good form we thought we'd give this a go under a penalty.
The metamorphic mineral assemblage in most of the pelitic rocks consists of chlorite, muscovite, biotite, and albitic plagioclase whereas in the Whycocomagh Mountain area the grade is higher and garnet and andalusite are present.
The development of contact thermal metamorphic minerals, such as andalusite, biotite, diopside, and hornblende is related to the intrusion of Upper Cretaceous Varvarco granodiorite.