| Reference Type | Journal (article/letter/editorial) |
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| Title | Alteration of Phlogopite to Corrensite at Sharbot Lake, Ontario |
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| Journal | Clays and Clay Minerals |
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| Authors | De Kimpe, C. R. | Author |
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| Miles, N. | Author |
| Kodama, H. | Author |
| Dejou, J. | Author |
| Year | 1987 (April) | Volume | 35 |
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| Page(s) | 150-158 | Issue | 2 |
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| Publisher | Cambridge University Press (CUP) |
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| URL | |
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| DOI | doi:10.1346/ccmn.1987.0350207Search in ResearchGate |
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| Generate Citation Formats |
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| Classification | Not set | LoC | Not set |
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| Mindat Ref. ID | 146290 | Long-form Identifier | mindat:1:5:146290:0 |
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| GUID | 0 |
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| Full Reference | De Kimpe, C. R.; Miles, N.; Kodama, H.; Dejou, J. (1987) Alteration of Phlogopite to Corrensite at Sharbot Lake, Ontario. Clays and Clay Minerals, 35 (2). 150-158 doi:10.1346/ccmn.1987.0350207 |
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| Plain Text | De Kimpe, C. R.; Miles, N.; Kodama, H.; Dejou, J. (1987) Alteration of Phlogopite to Corrensite at Sharbot Lake, Ontario. Clays and Clay Minerals, 35 (2). 150-158 doi:10.1346/ccmn.1987.0350207 |
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| In | (1987) Clays and Clay Minerals Vol. 35 (2) Springer Science and Business Media LLC |
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| Abstract/Notes | AbstractA low-charge corrensite, i.e., a regular 1:1 interstratified smectite/chlorite was found in veins and fissures of an extensively fractured dolomite south of Perth, Ontario, Canada. Total chemical analysis indicated that the mineral was trioctahedral, having a structural formula corresponding to:
(Ca0.17)(Mg7.36Al0.90Fe3+ 0.45Fe2+ 0.42)VI(Si6.06Al1.94)IVO20(OH)10.The coefficient of variation (CV) of the d(00l) spacings calculated for the mineral from X-ray powder diffraction data was 0.42, well below the maximum recommended value for corrensite, 0.75. The corrensite coexists with phlogopite, which is present as small (~0.5 mm) crystals throughout the rock and locally as large (~5 cm) crystals in pegmatitic veins. Microscopic observatiofls of large phlogopite crystals partially altered to corrensite suggest that corrensite formed at the expense of phlogopite by hydrothermal alteration. |
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