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Tocher, F. E. (1964) A new universal stage extinction technique: the determination of 2 V when neither optic axis is directly observable. Mineralogical Magazine and Journal of the Mineralogical Society, 33 (266) 1038-1054 doi:10.1180/minmag.1964.033.266.12

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Reference TypeJournal (article/letter/editorial)
TitleA new universal stage extinction technique: the determination of 2 V when neither optic axis is directly observable
JournalMineralogical Magazine and Journal of the Mineralogical Society
AuthorsTocher, F. E.Author
Year1964 (September)Volume33
Issue266
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_33/33-266-1038.pdf+
DOIdoi:10.1180/minmag.1964.033.266.12Search in ResearchGate
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Mindat Ref. ID5821Long-form Identifiermindat:1:5:5821:0
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Full ReferenceTocher, F. E. (1964) A new universal stage extinction technique: the determination of 2 V when neither optic axis is directly observable. Mineralogical Magazine and Journal of the Mineralogical Society, 33 (266) 1038-1054 doi:10.1180/minmag.1964.033.266.12
Plain TextTocher, F. E. (1964) A new universal stage extinction technique: the determination of 2 V when neither optic axis is directly observable. Mineralogical Magazine and Journal of the Mineralogical Society, 33 (266) 1038-1054 doi:10.1180/minmag.1964.033.266.12
In(1962) Mineralogical Magazine Vol. 33 (266) Mineralogical Society
Abstract/NotesSummaryA new universal stage extinction technique is presented. It is based on the special case of coplanar and conical extinction curves where an optic axis lies on the wave-normal locus. It may be used in favourable circumstances to determine 2V when neither optic axis is directly observable.

See Also

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Joel, N., Tocher, F. E. (1964) Conical extinction curves: a new universal stage technique. Mineralogical Magazine and Journal of the Mineralogical Society, 33 (265) 853-867 doi:10.1180/minmag.1964.033.265.03
Tocher, F. E. (1964) Direct stereographic determination of the optic axes from a ,few extinction measurements: a progressive elimination technique. Mineralogical Magazine and Journal of the Mineralogical Society, 33 (264) 780-789 doi:10.1180/minmag.1964.033.264.06
Joel, N., Muir, I. D. (1958) New techniques for the universal stage. II. The determination of the 2V when only one optic axis is accessible. Mineralogical Magazine and Journal of the Mineralogical Society, 31 (241). 878-882 doi:10.1180/minmag.1958.031.241.06
Tocher, F. E. (1964) Microscope accessory plates and colour blindness. Mineralogical Magazine and Journal of the Mineralogical Society, 33 (266) 1002-1007 doi:10.1180/minmag.1964.033.266.07
Tocher, F. E. (1962) Extinction curves and 2V: a stereographic solution. Mineralogical Magazine and Journal of the Mineralogical Society, 33 (256) 52-58 doi:10.1180/minmag.1962.033.256.08
Joel, N. (1964) A siereographic construction .for determining the optic axes of a biaxial crystal directly ,from a few extinction measurements. Mineralogical Magazine and Journal of the Mineralogical Society, 33 (264) 769-779 doi:10.1180/minmag.1964.033.264.05
(1964) Proceedings of the Mineralogical Society (1963–64) Mineralogical Magazine and Journal of the Mineralogical Society, 33 (266) doi:10.1180/minmag.1964.033.266.16
King, Basil C. (1962) Optical determination of aegirine-augite with the universal stage. Mineralogical Magazine and Journal of the Mineralogical Society, 33 (257) 132-137 doi:10.1180/minmag.1962.033.257.06
Challis, G. A., Long, J. V. P. (1964) Wairauite—a new cobalt-iron mineral. Mineralogical Magazine and Journal of the Mineralogical Society, 33 (266) 942-948 doi:10.1180/minmag.1964.033.266.02
Joel, N., Muir, I. D. (1958) New techniques for the universal stage. I. An extinction curve method for the determination of the optical indicatrix. Mineralogical Magazine and Journal of the Mineralogical Society, 31 (241). 860-877 doi:10.1180/minmag.1958.031.241.05
Mueller, Robert F. (1964) Theory of Immiscibility in Mineral Systems. Mineralogical Magazine and Journal of the Mineralogical Society, 33 (266) 1015-1023 doi:10.1180/minmag.1964.033.266.09
 
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