00000nam 2200000za 4500 9.840139 CaOODSP 20221107151753 cr ||||||||||| 170721s1966 oncad ob f000 0 eng d CaOODSP eng n-cn--- M38-8/13E-PDF M38-8/13 Turnock, Allan C. Synthetic wodginite, tapiolite and tantalite [electronic resource] / A.C. Turnock. Ottawa : Queen's Printer, 1966. p. 461-470 : charts, ill. Reprint series ; RS 13 Cover title. "Reprinted from the Canadian Mineralogist, Vol. 8, Part 4, 1966, Pages 461 to 470." Historical publication digitized from print 2017 [by Natural Resources Canada]. Includes bibliographical references. "Solid phases in the systems MnTa2O6-FeTa2O6-O and MnTa2O6-FeTaO4 have been synthesized at various temperatures and partial pressures of oxygen. In the binary system MnTa2O6-FeTa2O6, the two solid phases produced were: (i) orthorhombic tantalite, and (ii) tetragonal (tapiolite). The maximum amounts of substitution al 1200 °C were x = 0.18, y = 0.62. The oxidation of these tantalites and tapiolites produced solid phases with compositions that are on the join MnTa2O6-FeTaO4, plus exsolved Ta2O5. In the system MnTa2O6-FeTaO4, the three solid phases produced were: (i) orthorhombic tantalite, (ii) monoclinic wodginite, and (iii) a tetragonal compound with a rutile-type structure. It has been shown that in wodginite (i) the iron is trivalent and the manganese divalent, and that (ii) tin is not an essential component"--Abstract, p. 461. gccst Minerals Canada. Natural Resources Canada. Canada. Department of Energy, Mines and Resources. Canada. Mines Branch. Reprint series - Dept. of Energy, Mines and Resources, Mines Branch ; RS 13 (CaOODSP)9.834843 PDF 4.81 MB https://publications.gc.ca/collections/collection_2017/rncan-nrcan/M38-8/M38-8-13-eng.pdf 300092