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Biotites Intermediate Between Dioctahedral and Trioctahedral Micas
1967
Clays and clay minerals
ORANGE-YELLOW detrital flakes of biotite are common carriers of potassium and trace elements in soils and clays. Because the flakes differ in degree of alteration and may be derived from different sources, it is difficult to obtain homogeneous material for studies of their physical and chemical properties that may be compared with the original mica. A similar orange-yellow altered biotite occurs with fresh biotites in alkalie rocks of a nepheline deposit. The fresh and altered biotites were
doi:10.1346/ccmn.1967.0150139
fatcat:gnnswwx3nneahjwlcyyogbw6kq