| Reference Type | Journal (article/letter/editorial) |
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| Title | Incorporation of impurities in tridymites from a used silica brick |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Schneider, H. | Author |
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| Wohlleben, K. | Author |
| Majdic, A. | Author |
| Year | 1980 (September) | Volume | 43 |
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| Issue | 331 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_43/43-331-879.pdf+ |
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| DOI | doi:10.1180/minmag.1980.043.331.10Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 3161 | Long-form Identifier | mindat:1:5:3161:9 |
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| GUID | 0 |
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| Full Reference | Schneider, H., Wohlleben, K., Majdic, A. (1980) Incorporation of impurities in tridymites from a used silica brick. Mineralogical Magazine, 43 (331) 879-883 doi:10.1180/minmag.1980.043.331.10 |
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| Plain Text | Schneider, H., Wohlleben, K., Majdic, A. (1980) Incorporation of impurities in tridymites from a used silica brick. Mineralogical Magazine, 43 (331) 879-883 doi:10.1180/minmag.1980.043.331.10 |
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| In | (1980, September) Mineralogical Magazine Vol. 43 (331) Mineralogical Society |
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| Abstract/Notes | SummaryThe incorporation of impurities in tridymites taken from a used silica brick have been studied by means of a high-resolution microprobe, X-ray fluorescence, X-ray diffractometry, and optical microscopy. The bulk impurity content of the brick changes strongly from the hot zone (4.7 wt%) to the colder part of the brick (7.6 wt%), indicating material transport along the temperature gradient. The transport medium for migration processes is probably a melt occurring in narrow veins between large tridymite crystals at high temperatures. The average impurity contents of homogeneous tridymite single crystals are 0.49 wt% in the hot zone of the brick and 0.81 wt% in the cold zone. Al2O3, TiO2, and Na2O are main impurity constituents; the tridymites do not contain significant amounts of Fe2O3 or CaO. The a parameters of tridymites decrease by about 0.26% from 4.9837 Å to 4.9709 Å from the hot zone to the cold zone of the brick and the c dimension shows a smaller decrease (0.11 %) from 8.2023 Å to 8.1933 Å. |
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