GLAUKOSPHAERITE FROM CHROMITITES OF THE VOYKAR-SYNYA MASSIF, POLAR URALS – THE FIRST RELIABLE FIND IN RUSSIA
Glaukosphaerite and mcguinnessite (carbonates of the rosasite-malachite group) are found in chromitites of the Burkhoyla area, which is located in the northern part of the Voykar-Synya ultramafic massif (Polar Urals). The minerals form green and bluish-green films, small crystals and spherulites (up...
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South Urals Federal Research Center of Mineralogy and Geoecology UB RAS
2023-09-01
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| Series: | Минералогия |
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| Online Access: | https://journal.mineralogy.ru/wp-content/uploads/2023/10/2023_9_3_1.pdf |
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| author | Yu.V. Erokhin I.V. Pekov N.V. Vakhrusheva P.B. Shiryaev V.O. Yapaskurt S.N. Britvin |
| author_facet | Yu.V. Erokhin I.V. Pekov N.V. Vakhrusheva P.B. Shiryaev V.O. Yapaskurt S.N. Britvin |
| author_sort | Yu.V. Erokhin |
| collection | DOAJ |
| description | Glaukosphaerite and mcguinnessite (carbonates of the rosasite-malachite group) are found in chromitites of the Burkhoyla area, which is located in the northern part of the Voykar-Synya ultramafic massif (Polar Urals). The minerals form green and bluish-green films, small crystals and spherulites (up to 0.3 mm) in cavities of weathered chromitites. This is the first reliable find of glaukosphaerite in Russia. The chemical composition of glaukosphaerite is as follows (wt %): 25.14 NiO, 0.44 CoO, 0.89 FeO, 34.45 CuO, 7.90 MgO, 21.65 CO2 (calc.), 8.86 H2O (calc.), total 99.33. The empirical formula calculated based on the cation sum is (Cu0.88Ni0.68Mg0.40Fe0.03Co0.01)2.00(CO3)(OH)2. The parameters of the monoclinic unit cell of glaukosphaerite calculated from the powder X-ray diffraction data are: a = 12.070(3), b = 9.363(2), c = 3.131(1) Å, β = 98.03(2)º, V = 350.3(3) Å3 . The formation of these carbonates is related to supergene alteration of sulfides (pentlandite and bornite) in chromitites. |
| format | Article |
| id | doaj-art-4d3e6668faf44e54a5e90f3df2a426ae |
| institution | Kabale University |
| issn | 2313-545X 2782-2044 |
| language | English |
| publishDate | 2023-09-01 |
| publisher | South Urals Federal Research Center of Mineralogy and Geoecology UB RAS |
| record_format | Article |
| series | Минералогия |
| spelling | doaj-art-4d3e6668faf44e54a5e90f3df2a426ae2025-02-07T09:24:16ZengSouth Urals Federal Research Center of Mineralogy and Geoecology UB RASМинералогия2313-545X2782-20442023-09-019351410.35597/2313-545X-2023-9-3-1GLAUKOSPHAERITE FROM CHROMITITES OF THE VOYKAR-SYNYA MASSIF, POLAR URALS – THE FIRST RELIABLE FIND IN RUSSIAYu.V. Erokhin0I.V. Pekov1N.V. Vakhrusheva2P.B. Shiryaev3V.O. Yapaskurt4S.N. Britvin5Zavaritsky Institute of Geology and Geochemistry UB RASMoscow State UniversityZavaritsky Institute of Geology and Geochemistry UB RASZavaritsky Institute of Geology and Geochemistry UB RASMoscow State UniversitySt. Petersburg State UniversityGlaukosphaerite and mcguinnessite (carbonates of the rosasite-malachite group) are found in chromitites of the Burkhoyla area, which is located in the northern part of the Voykar-Synya ultramafic massif (Polar Urals). The minerals form green and bluish-green films, small crystals and spherulites (up to 0.3 mm) in cavities of weathered chromitites. This is the first reliable find of glaukosphaerite in Russia. The chemical composition of glaukosphaerite is as follows (wt %): 25.14 NiO, 0.44 CoO, 0.89 FeO, 34.45 CuO, 7.90 MgO, 21.65 CO2 (calc.), 8.86 H2O (calc.), total 99.33. The empirical formula calculated based on the cation sum is (Cu0.88Ni0.68Mg0.40Fe0.03Co0.01)2.00(CO3)(OH)2. The parameters of the monoclinic unit cell of glaukosphaerite calculated from the powder X-ray diffraction data are: a = 12.070(3), b = 9.363(2), c = 3.131(1) Å, β = 98.03(2)º, V = 350.3(3) Å3 . The formation of these carbonates is related to supergene alteration of sulfides (pentlandite and bornite) in chromitites.https://journal.mineralogy.ru/wp-content/uploads/2023/10/2023_9_3_1.pdfpolar uralsburkhoyla areavoykar-synya massifchromititesglaukosphaeritemcguinnessite |
| spellingShingle | Yu.V. Erokhin I.V. Pekov N.V. Vakhrusheva P.B. Shiryaev V.O. Yapaskurt S.N. Britvin GLAUKOSPHAERITE FROM CHROMITITES OF THE VOYKAR-SYNYA MASSIF, POLAR URALS – THE FIRST RELIABLE FIND IN RUSSIA Минералогия polar urals burkhoyla area voykar-synya massif chromitites glaukosphaerite mcguinnessite |
| title | GLAUKOSPHAERITE FROM CHROMITITES OF THE VOYKAR-SYNYA MASSIF, POLAR URALS – THE FIRST RELIABLE FIND IN RUSSIA |
| title_full | GLAUKOSPHAERITE FROM CHROMITITES OF THE VOYKAR-SYNYA MASSIF, POLAR URALS – THE FIRST RELIABLE FIND IN RUSSIA |
| title_fullStr | GLAUKOSPHAERITE FROM CHROMITITES OF THE VOYKAR-SYNYA MASSIF, POLAR URALS – THE FIRST RELIABLE FIND IN RUSSIA |
| title_full_unstemmed | GLAUKOSPHAERITE FROM CHROMITITES OF THE VOYKAR-SYNYA MASSIF, POLAR URALS – THE FIRST RELIABLE FIND IN RUSSIA |
| title_short | GLAUKOSPHAERITE FROM CHROMITITES OF THE VOYKAR-SYNYA MASSIF, POLAR URALS – THE FIRST RELIABLE FIND IN RUSSIA |
| title_sort | glaukosphaerite from chromitites of the voykar synya massif polar urals the first reliable find in russia |
| topic | polar urals burkhoyla area voykar-synya massif chromitites glaukosphaerite mcguinnessite |
| url | https://journal.mineralogy.ru/wp-content/uploads/2023/10/2023_9_3_1.pdf |
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