The origin of needle-like rutile inclusions in natural gem corundum: A combined EPMA, LA-ICP-MS, and nano-SIMS investigation—Discussion

References cited

Baldwin, L.C., Tomaschek, F., Ballhaus, C., Gerdes, A., Fonseca, R.O.C., Wirth, R., Geisler, T., and Nagel, T. (2017) Petrogenesis of alkaline basalt-hosted sapphire megacrysts. Petrological and geochemical investigations of in situ sapphire occurences from Siebengebirge Volcanic Field, Germany. Contributions to Mineralogy and Petrology, 172, 43.10.1007/s00410-017-1362-0Search in Google Scholar

Cherniak, D.J., Watson, E.B., and Wark, D.A. (2007) Ti diffusion in quartz. Chemical Geology, 236, 65–74.10.1016/j.chemgeo.2006.09.001Search in Google Scholar

Doremus, R.H. (2006) Diffusion in alumina. Journal of Applied Physics, 100, 101301.10.1063/1.2393012Search in Google Scholar

Emmet, J.L., and Douthit, T.R. (1993) Heat treating the sapphires of Rock Creek, Montana. Gems & Gemology, 29/4, 250–272.10.5741/GEMS.29.4.250Search in Google Scholar

Guo, J., O’Reilly, S.Y., and Griffin, W.L. (1996) Corundum from basaltic terrains: a mineral inclusion approach to the enigma. Contributions to Mineralogy and Petrology, 122, 368–386.10.1007/s004100050134Search in Google Scholar

Karmakar, S., Mukherjee, S., Sanyal, S., and Sengupta, P. (2017) Origin of peraluminous minerals (corundum, spinel and sapphirine) in a highly calcic anorthosite from the Sittampundi Layered Complex, Tamil Nadu, India. Contributions to Mineralogy and Petrology, 172, 67.10.1007/s00410-017-1383-8Search in Google Scholar

Kullerud, K., Nasipuri, P., Ravna, E.J.K., and Selbekk, R.S. (2012) Formation of corundum megacrysts during H₂O-saturated incongruent melting of feldspar: P-T pseudosection-based modelling from the Skattøra migmatite complex, North Norwegian Caledonides. Contributions to Mineralogy and Petrology, 164, 627–641.10.1007/s00410-012-0765-1Search in Google Scholar

Langensiepen, R.A., Tressler, R.E., and Howell, P.R. (1983) A preliminary study of precipitation in Ti⁴⁺-doped polycrystalline alumina. Journal of Materials Science, 18, 2771–2776.10.1007/BF00547594Search in Google Scholar

Moon, A.R., and Phillips, M.R. (1991) Titania precipitation in sapphire containing iron and titanium. Physics and Chemistry of Minerals, 18, 251–258.10.1007/BF00202577Search in Google Scholar

Nassau, K. (1981) Heat treating ruby and sapphire: technical aspects. Gems & Gemology, 17/3, 121–131.10.5741/GEMS.17.3.121Search in Google Scholar

Palke, A.C., and Breeding, C.M. (2017) The origin of needle-like rutile inclusions in natural gem corundum: A combined EPMA, LA-ICP-MS, and nano-SIMS investigation. American Mineralogist, 102, 1451–1461.10.2138/am-2017-5965Search in Google Scholar

Palke, A.C., Renfro, N.D., and Berg, R.B. (2016) Origin of sapphires from a lamprophyre dike at Yogo Gulch, Montana, USA: Clues from their melt inclusions. Lithos, 260, 339–344.10.1016/j.lithos.2016.06.004Search in Google Scholar

Palke, A.C., Renfro, N.D., and Berg, R.B. (2017) Melt inclusions in alluvial sapphires from, Montana, USA: Formation of sapphires as a restitic component of lower crustal melting? Lithos, 278-281, 43–53.10.1016/j.lithos.2017.01.026Search in Google Scholar

Phillips, D.S., Heuer, A.H., and Mitchell, T.E. (1980) Precipitation in star sapphire I. Identification of the precipitate. Philosophical Magazine A, 42/3, 385–404.10.1080/01418618008239365Search in Google Scholar

Proyer, A., Habler, G., Abart, R., Wirth, R., Krenn., K., and Hoinkes, G. (2013) TiO₂ exsolution from garnet by open system precipitation: evidence from crystallographic and shape preferred orientation of rutile inclusions. Contributions to Mineralogy and Petrology, 166, 211–234.10.1007/s00410-013-0872-7Search in Google Scholar

Schmetzer, K., Steinbach, M.P., Gilg, A., and Blake, A.R. (2015) Dual-color double stars in ruby, sapphire and quartz: cause and historical account. Gems & Gemology, 51/2, 112–143.10.5741/GEMS.51.2.112Search in Google Scholar

Sutherland, F.L., Hoskin, P.W.O., Fanning, C.M., and Coenraads, R.R. (1998) Models of corundum origin from alkali basaltic terrains: a reappraisal. Contributions to Mineralogy and Petrology, 133, 356–372.10.1007/s004100050458Search in Google Scholar

Zhukova, I., O’Neill, H., and Campbell, I.H. (2017) A subsidiary fast-diffusing substitution mechanism of Al in forsterite investigated using diffusion experiments under controlled thermodynamic conditions. Contributions to Mineralogy and Petrology, 172, 53.10.1007/s00410-017-1365-xSearch in Google Scholar