Encyclopedia

beraunite

beraunite

[bə′rau̇‚nīt]
(mineralogy)
Fe2+Fe3+(PO4)3(OH)5·3H2O A reddish-brown to blood red, monoclinic mineral consisting of hydrated basic phosphate of ferric and ferrous iron.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive
The Red Ball mine, Calhoun County, Alabama, was once a source of iron for Confederate cannon, and now is a source of colorful strengite, cacoxenite, beraunite, and kidwellite in earthy brown "bog iron" matrixes.
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