MAGNESIOHÖGBOMITE (MG,FE2+,ZN)8 (AL,TI,FE3+)20O38(OH)2 FROM ILMENOGORSKY-VISHNEVOGORSKY COMPLEX
Rare mineral magnesiohögbomite was found in spinel-sapphirine hornblendites and titanomagnetite clinopyroxenites, which compose the large blocks in tectonic sheets of serpentinites among gneisses of the Kyshtym sequence (Ilmenogosrky-Vyshnevogorsky complex, South Urals). In hornblendite, magnesiohög...
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| Format: | Article |
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South Urals Federal Research Center of Mineralogy and Geoecology UB RAS
2016-06-01
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| Series: | Минералогия |
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| Online Access: | https://journal.mineralogy.ru/wp-content/uploads/2019/09/2016-2-3.pdf |
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| author | V.G. Korinevsky V.A. Kotlyarov E.V. Korinevsky A.B. Mironov M.V. Shtenberg |
| author_facet | V.G. Korinevsky V.A. Kotlyarov E.V. Korinevsky A.B. Mironov M.V. Shtenberg |
| author_sort | V.G. Korinevsky |
| collection | DOAJ |
| description | Rare mineral magnesiohögbomite was found in spinel-sapphirine hornblendites and titanomagnetite clinopyroxenites, which compose the large blocks in tectonic sheets of serpentinites among gneisses of the Kyshtym sequence (Ilmenogosrky-Vyshnevogorsky complex, South Urals). In hornblendite, magnesiohögbomite occurs as grains 0.02–0.6 mm in size. It is characterized by the low iron mole fraction (f = 0.34–0.49) and contains 6–7 wt. % TiO2 and up to 0.25 wt. % Cr2 O3 . In clinopyroxenite, magnesiohögbomite forms black (brown at the edges) platy grains 0.3–0.8 mm (up to 1–7 mm) across with pitch luster and conchoidal fracture. It contains considerably less TiO2 and more MgO relative to that from hornblendites. The intensive lines of its XRD pattern are (d, Å; I): 4.61 (26), 3.37 (26), 2.867 (27), 2.744 (53), 2.492 (62), 2.433 (100), 2.084 (42), 1.982 (40), 1.573 (29), 1.558 (21), 1.519 (25), 1.443 (53), 1.434 (44). These values reflect hexagonal syngony and indicate the following unit cell parameters of the mineral (Å): a 5.715(5), c 23.931(2), V 677.01(4) Å3 , which can be ascribed to polytype 2N3S. |
| format | Article |
| id | doaj-art-606e501d185e41e3a9649554cfc8fd98 |
| institution | DOAJ |
| issn | 2313-545X 2782-2044 |
| language | English |
| publishDate | 2016-06-01 |
| publisher | South Urals Federal Research Center of Mineralogy and Geoecology UB RAS |
| record_format | Article |
| series | Минералогия |
| spelling | doaj-art-606e501d185e41e3a9649554cfc8fd982025-08-20T02:58:40ZengSouth Urals Federal Research Center of Mineralogy and Geoecology UB RASМинералогия2313-545X2782-20442016-06-01222033MAGNESIOHÖGBOMITE (MG,FE2+,ZN)8 (AL,TI,FE3+)20O38(OH)2 FROM ILMENOGORSKY-VISHNEVOGORSKY COMPLEXV.G. Korinevsky0V.A. Kotlyarov1E.V. Korinevsky2A.B. Mironov3M.V. Shtenberg4Institute of Mineralogy UB RASInstitute of Mineralogy UB RASInstitute of Mineralogy UB RASInstitute of Mineralogy UB RASInstitute of Mineralogy UB RASRare mineral magnesiohögbomite was found in spinel-sapphirine hornblendites and titanomagnetite clinopyroxenites, which compose the large blocks in tectonic sheets of serpentinites among gneisses of the Kyshtym sequence (Ilmenogosrky-Vyshnevogorsky complex, South Urals). In hornblendite, magnesiohögbomite occurs as grains 0.02–0.6 mm in size. It is characterized by the low iron mole fraction (f = 0.34–0.49) and contains 6–7 wt. % TiO2 and up to 0.25 wt. % Cr2 O3 . In clinopyroxenite, magnesiohögbomite forms black (brown at the edges) platy grains 0.3–0.8 mm (up to 1–7 mm) across with pitch luster and conchoidal fracture. It contains considerably less TiO2 and more MgO relative to that from hornblendites. The intensive lines of its XRD pattern are (d, Å; I): 4.61 (26), 3.37 (26), 2.867 (27), 2.744 (53), 2.492 (62), 2.433 (100), 2.084 (42), 1.982 (40), 1.573 (29), 1.558 (21), 1.519 (25), 1.443 (53), 1.434 (44). These values reflect hexagonal syngony and indicate the following unit cell parameters of the mineral (Å): a 5.715(5), c 23.931(2), V 677.01(4) Å3 , which can be ascribed to polytype 2N3S.https://journal.mineralogy.ru/wp-content/uploads/2019/09/2016-2-3.pdfmagnesiohögbomitehornblenditeclinopyroxeniteserpentinite mélangeilmenovishnevogorsky complexsouth urals |
| spellingShingle | V.G. Korinevsky V.A. Kotlyarov E.V. Korinevsky A.B. Mironov M.V. Shtenberg MAGNESIOHÖGBOMITE (MG,FE2+,ZN)8 (AL,TI,FE3+)20O38(OH)2 FROM ILMENOGORSKY-VISHNEVOGORSKY COMPLEX Минералогия magnesiohögbomite hornblendite clinopyroxenite serpentinite mélange ilmenovishnevogorsky complex south urals |
| title | MAGNESIOHÖGBOMITE (MG,FE2+,ZN)8 (AL,TI,FE3+)20O38(OH)2 FROM ILMENOGORSKY-VISHNEVOGORSKY COMPLEX |
| title_full | MAGNESIOHÖGBOMITE (MG,FE2+,ZN)8 (AL,TI,FE3+)20O38(OH)2 FROM ILMENOGORSKY-VISHNEVOGORSKY COMPLEX |
| title_fullStr | MAGNESIOHÖGBOMITE (MG,FE2+,ZN)8 (AL,TI,FE3+)20O38(OH)2 FROM ILMENOGORSKY-VISHNEVOGORSKY COMPLEX |
| title_full_unstemmed | MAGNESIOHÖGBOMITE (MG,FE2+,ZN)8 (AL,TI,FE3+)20O38(OH)2 FROM ILMENOGORSKY-VISHNEVOGORSKY COMPLEX |
| title_short | MAGNESIOHÖGBOMITE (MG,FE2+,ZN)8 (AL,TI,FE3+)20O38(OH)2 FROM ILMENOGORSKY-VISHNEVOGORSKY COMPLEX |
| title_sort | magnesiohogbomite mg fe2 zn 8 al ti fe3 20o38 oh 2 from ilmenogorsky vishnevogorsky complex |
| topic | magnesiohögbomite hornblendite clinopyroxenite serpentinite mélange ilmenovishnevogorsky complex south urals |
| url | https://journal.mineralogy.ru/wp-content/uploads/2019/09/2016-2-3.pdf |
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