POLYCHROME CANCRINITE–VISHNEVITE OF ALKALI PEGMATITES OF THE KUROCHKIN LOG OCCURRENCE, VISHNEVYE MOUNTAINS OF THE URALS
Polychrome cancrinite–vishnevite crystal was found in alkali nepheline-feldspar pegmatites of the Kurochkin Log occurrence from the Vishnevye Mountains in the Southern Urals. A crystal 15 mm in size exhibits a gradual transition from early yellow zones of S-bearing cancrinite (Na5.32Ca0.89□)6.21(Al6...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
South Urals Federal Research Center of Mineralogy and Geoecology UB RAS
2018-06-01
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| Series: | Минералогия |
| Subjects: | |
| Online Access: | https://journal.mineralogy.ru/wp-content/uploads/2019/09/2018-2-3.pdf |
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| Summary: | Polychrome cancrinite–vishnevite crystal was found in alkali nepheline-feldspar pegmatites of the Kurochkin Log occurrence from the Vishnevye Mountains in the Southern Urals. A crystal 15 mm in size exhibits a gradual transition from early yellow zones of S-bearing cancrinite (Na5.32Ca0.89□)6.21(Al6.07Si5.93O24)(CO3)0.59(SO4)0.41• 3H2O to late blue zones of vishnevite (Na6.27Ca0.06K0.31□) 6.64(Al5.99Si6.01O24)(SO4)0.99 (CO3)0.01• 3H2O. |
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| ISSN: | 2313-545X 2782-2044 |