| Reference Type | Journal (article/letter/editorial) |
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| Title | On the Chemical Classification of the Mica Group. II. The Basic Micas |
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| Journal | Mineralogical Magazine and Journal of the Mineralogical Society |
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| Authors | Hallimond, A. F. | Author |
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| Year | 1926 (June) | Volume | 21 |
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| Issue | 113 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_21/21-113-25.pdf+ |
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| DOI | doi:10.1180/minmag.1926.021.113.01 |
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| Generate Citation Formats |
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| Mindat Ref. ID | 7014 | Long-form Identifier | mindat:1:5:7014:4 |
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| GUID | 0 |
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| Full Reference | Hallimond, A. F. (1926) On the Chemical Classification of the Mica Group. II. The Basic Micas. Mineralogical Magazine and Journal of the Mineralogical Society, 21 (113) 25-33 doi:10.1180/minmag.1926.021.113.01 |
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| Plain Text | Hallimond, A. F. (1926) On the Chemical Classification of the Mica Group. II. The Basic Micas. Mineralogical Magazine and Journal of the Mineralogical Society, 21 (113) 25-33 doi:10.1180/minmag.1926.021.113.01 |
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| In | (1926) Mineralogical Magazine Vol. 21 (113) Mineralogical Society |
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| Abstract/Notes | In the first part of this paper it was shown that the acid section of the mica group could be divided into two main series, the potash micas and the lithia micas. The molecular ratio of potash to silica was 1 : 6 and the micas were therefore represented as salts of an acid characterized by this value. The present section contains the result of a similar investigation of the basic micas, especially biotite and phlogopite; here again it will be seen that the grouping K2O. 6SiO2 is present throughout. For comparison of the molecular composition, the analyses of the basic micas have been recalculated in molecular ratios, (Si,Ti)O2 being made equal to 600 according to the method already used for the acid micas. |
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