phoenicochroite


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phoenicochroite

[‚fēn·ə′kä·krə‚wīt]
(mineralogy)
Pb2CrO5 A red mineral composed of basic chromate of lead, occurring in crystals and masses. Also known as beresovite; phenicochroite; phoenicite.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Lead phases (synthetic) are anglesite [PbSO.sub.4], crocoite [PbCrO.sub.4], hydrocerussite [Pb.sub.3][([CO.sub.3]).sub.2][(OH).sub.2]), phoenicochroite [Pb.sub.2][CrO.sub.5], and plattnerite [PbO.sub.2].
By X-ray diffraction analysis, the sample contained synthetic phoenicochroite ([Pb.sub.2][CrO.sub.4]O), synthetic quartz ([SiO.sub.2]), synthetic calcite ([CaCO.sub.3]), synthetic barite ([BaSO.sub.4]), synthetic anatase and rutile ([TiO.sub.2]).
Lead phases detected in lead paint include synthetic hydrocerussite, crocoite, anglesite, phoenicochroite and possible plattnerite.
LEAD IN PAINT IN WEST GEORGIA: X-RAY DIFFRACTION, ICP AND HACH COLORIMETER ANALYSIS

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