| Reference Type | Journal (article/letter/editorial) |
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| Title | The first occurrence of qandilite in Russia |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Oktyabrsky, R. A. | Author |
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| Shcheka, S. A. | Author |
| Lennikov, A. M. | Author |
| Afanasyeva, T. B. | Author |
| Year | 1992 (September) | Volume | 56 |
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| Issue | 384 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_56/56-384-385.pdf+ |
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| DOI | doi:10.1180/minmag.1992.056.384.11Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 1843 | Long-form Identifier | mindat:1:5:1843:6 |
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| GUID | 0 |
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| Full Reference | Oktyabrsky, R. A., Shcheka, S. A., Lennikov, A. M., Afanasyeva, T. B. (1992) The first occurrence of qandilite in Russia. Mineralogical Magazine, 56 (384) 385-389 doi:10.1180/minmag.1992.056.384.11 |
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| Plain Text | Oktyabrsky, R. A., Shcheka, S. A., Lennikov, A. M., Afanasyeva, T. B. (1992) The first occurrence of qandilite in Russia. Mineralogical Magazine, 56 (384) 385-389 doi:10.1180/minmag.1992.056.384.11 |
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| In | (1992, September) Mineralogical Magazine Vol. 56 (384) Mineralogical Society |
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| Abstract/Notes | AbstractNumerous small octahedra of a black, brittle, magnetic mineral were found in calciphyre and brucite marble, occurring in the northern part of the exocontact zone of the Kondyor ultramafic-alkalic massif (south-eastern part of the Aldan Shield, 250 km north west of sea port Ayan). Their composition corresponds to the group from titanium magnesioferrite (11.53% TiO2) to titanium-rich magnesian spinel (27.34% TiO2), similar to spinellide found in Greenland (Gittins et al., 1982) and in Iraq (Al-Hermezi, 1985) and approved by the Commission on New Minerals as a new mineral named qandilite. Hardness, specific gravity, and reflectance of Kondyor qandilite are similar to those of the Iraq mineral. Peaks of IR-absorption spectra are equal to 580-590 cm−1 (v2) and 431-438 cm−1 (v2). There is a positive correlation between lattice parameters and the amount of Mg2TiO4: from 8.368 Å at 26.6% to 8.429 Å at 60.4%. Kondyor qandilite crystallized together with geikielite, oxidized alumina spinel (8.55% Fe2O3, ftotal : 16.5%), periclase, and forsterite. |
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