daphnite

daphnite

[′daf‚nīt]
(mineralogy)
(MgFe)3(Fe,Al)3(Si,Al)4O10(OH)8 A mineral of the chlorite group consisting of a basic aluminosilicate of magnesium, iron, and aluminum.
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References in periodicals archive ?
Feldspars (plagioclase and K-feldspar) and chlorite (clinochlore and daphnite) are predominantly dissolved (anorthite will be excluded from discussion because it was added to fit the low concentration of Ca).
(2001) augmented Bermans data by data for components of chlorite (amesite = [Mg.sub.4][Al.sub.2][Al.sub.2][Si.sub.2][O.sub.10]][(OH).sub.8], daphnite = [Fe.sub.5]Al[Al[Si.sub.3][O.sub.10]][(OH).sub.8]) and potassic white mica (pyrophyllite = [Al.sub.2][[Si.sub.4][O.sub.10]][(OH).sub.2], Mg-Al-celadonite = KAlMg[[Si.sub.4][O.sub.10]][(OH).sub.2], Fe-Al-celadonite = KAlFe[[Si.sub.4][O.sub.10]][(OH).sub.2]) and corresponding activity models for both phases.
With the exception of four completely chlorite altered rocks (daphnite, based on (Fe+Mg)/Al ratios of 3/2), rhyolite is partially to completely muscovite-altered.
O cerrado de Paraopeba apresentou especies exclusivas (preferenciais) tais como Pera glabrata, Alibertia sessilis, Myrcia lingua, Erythroxylum daphnites, Eugenia dysenterica, Machaerium opacum, Magonia pubescens e Plathymenia reticulata.