Chromian Tourmaline and Cr–Sb–W-Bearing Rutile of the Kamennoozerskoe Chromitite Occurrence, Central Urals, Russia

Tourmaline, rutile, and associated minerals from veinlets cutting chromitites are characteristic of the Kamennoozerskoe occurrence belonging to the Shabrovskii district in the Central Urals. Tourmaline belongs to the dravite–oxy-dravite series and contains Cr (0.52–2.06 apfu), Ni (up to 0.03 apfu),...

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Bibliographic Details
Published in:Moscow University geology bulletin 2023-08, Vol.78 (4), p.504-519
Main Authors: Baksheev, I. A., Erokhin, Yu. V., Ekimenkova, I. A., Zakharov, A. V., Grigoriev, V. V., Yapaskurt, V. O., Koshlyakova, N. N.
Format: Article
Language:English
Subjects:
Analytical methods
Earth and Environmental Science
Earth Sciences
Geology
Minerals
Oxidation
Rutile
Tourmaline
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Summary:Tourmaline, rutile, and associated minerals from veinlets cutting chromitites are characteristic of the Kamennoozerskoe occurrence belonging to the Shabrovskii district in the Central Urals. Tourmaline belongs to the dravite–oxy-dravite series and contains Cr (0.52–2.06 apfu), Ni (up to 0.03 apfu), and V (up to 0.02 apfu). Raman spectroscopy indicates Fe 3+ in tourmaline. Rutile associated with tourmaline contains, wt %: Sb 2 O 5 4.68–11.69, Cr 2 O 3 2.00–8.02, and WO 3 0.88–1.14. It is suggested that tourmaline and associated minerals were formed under oxidizing conditions.
ISSN:0145-8752
1934-8436
DOI:10.3103/S0145875223040038