| Reference Type | Journal (article/letter/editorial) |
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| Title | Chemical composition and physical properties of lithium-iron micas from the Krušné hory (Erzgebirge), Czechoslovakia and Germany. Part B: Cell parameters and optical data |
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| Journal | Mineralogical Magazine |
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| Authors | Rieder, M. | Author |
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| Píchová, A. | Author |
| Fassová, M. | Author |
| Fediuková, E. | Author |
| Černý, P. | Author |
| Year | 1971 (June) | Volume | 38 |
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| Issue | 294 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_38/38-294-190.pdf+ |
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| DOI | doi:10.1180/minmag.1971.038.294.08Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 6459 | Long-form Identifier | mindat:1:5:6459:4 |
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| GUID | 0 |
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| Full Reference | Rieder, M., Píchová, A., Fassová, M., Fediuková, E., Černý, P. (1971) Chemical composition and physical properties of lithium-iron micas from the Krušné hory (Erzgebirge), Czechoslovakia and Germany. Part B: Cell parameters and optical data. Mineralogical Magazine, 38 (294) 190-196 doi:10.1180/minmag.1971.038.294.08 |
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| Plain Text | Rieder, M., Píchová, A., Fassová, M., Fediuková, E., Černý, P. (1971) Chemical composition and physical properties of lithium-iron micas from the Krušné hory (Erzgebirge), Czechoslovakia and Germany. Part B: Cell parameters and optical data. Mineralogical Magazine, 38 (294) 190-196 doi:10.1180/minmag.1971.038.294.08 |
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| In | (1971, June) Mineralogical Magazine Vol. 38 (294) Mineralogical Society |
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| Abstract/Notes | SummaryUnit-cell dimensions and refractive indices of lithium-iron micas decrease with decreasing iron and increasing lithium. Indices β and γ as well as parameters a and b can be used to estimate the composition of lithium-iron micas but basal spacing and 2Vα are poor indicators of composition.The chemical composition of natural lithium-iron micas from the Krušné hory and the Erzgebirge along the Czechoslovak—German border was discussed in Part A of this study (Rieder et al., 1970). It was concluded that the composition and crystallography of these micas fit best the series siderophyllite-polylithionite. The compositions were expressed by the ratio A′ = LR/(LR+‘Fe’). In this expression, LR is the subscript value of Li or octahedral R3+ (whichever is the smaller) in the crystallochemical formula, ‘Fe’ is the sum of the values in the formula of Fe2+ and Mn2+. A′ therefore defines the position of a particular mica on the siderophyllite-polylithionite join. This paper deals with the correlation between composition, cell dimensions, and refractive indices. |
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