acmite


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acmite

(ˈækˌmaɪt)
n
a silicate mineral with chemical formula NaFeSi2O6, consisting of pyramid-shaped crystals; aegirite
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Acmite Market Intelligence has updated a most comprehensive report on global carbon fiber composite market.
Na2O + K2O (8.8 wt%) and contains small amounts of diopside acmite and hypersthene in the CIPW norms that are dominated by albite quartz and orthoclase.
Acmite Market Intelligence, Ratingen, Germany, reckons that in the period 2010-2018 acrylics powder coatings will show a compound annual growth rate of 6.6 percent against a world average of 6.7 percent, one percentage point below that in the Asia Pacific, the fastest growth region.
Phonolites are typically microphyric to hypocrystalline with alkali feldspar phenocrysts or microphenocrysts ([Or.sub.43-83]), nepheline ([Ne.sub.67-79]), occasionally altered to cancrinite, acmitic clinopyroxene (acmite up to 63wt%), and ferroedenite-ferropargasite amphibole.
Most rocks are peralkaline with a high agpaitic index (AI = mole (Na+K)/A1; Shand 1951) and acmite in their CIPW normative mineralogy.