| Reference Type | Journal (article/letter/editorial) |
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| Title | A siereographic construction .for determining the optic axes of a biaxial crystal directly ,from a few extinction measurements |
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| Journal | Mineralogical Magazine and Journal of the Mineralogical Society |
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| Authors | Joel, N. | Author |
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| Year | 1964 (March) | Volume | 33 |
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| Issue | 264 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_33/33-264-769.pdf+ |
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| DOI | doi:10.1180/minmag.1964.033.264.05Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 5782 | Long-form Identifier | mindat:1:5:5782:4 |
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| GUID | 0 |
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| Full Reference | 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 |
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| Plain Text | 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 |
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| In | (1962) Mineralogical Magazine Vol. 33 (264) Mineralogical Society |
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| Abstract/Notes | SummaryIt is possible to determine the directions of the optic axes of a biaxial crystal mounted on a spindle stage—and hence the angle 2V and the directions of α, β, γ—from only four measured extinction positions. The method is a generalization of the one proposed by Tocher (1962); but in the present procedure it is not necessary to determine first the optic axial plane. |
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