sheridanite

sheridanite

[′shər·ə·də‚nīt]
(mineralogy)
(Mg,Al)6(Al,Si)4O10(OH)8 Pale-green to colorless talclike mineral composed of basic magnesium aluminum silicate.
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References in periodicals archive ?
Or worse, that there would be a new faction to rival the Brownites and the Blairites called the Sheridanites.