Anatomy of intergrowth OF florencite and xenotime crystals with oscillatory zoning from veins of the svodovy au-ree occurrence, subpolar u
The morphology and anatomy of a paragenetic intergrowth of REE minerals (xenotime and florencite) from veins of Svodovy Au-REE occurrence (Subpolar Urals) are described. The sequence of crystallization of minerals is identified using the features of internal structure of individuals and aggregates:...
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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
2020-09-01
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| Series: | Минералогия |
| Subjects: | |
| Online Access: | https://journal.mineralogy.ru/wp-content/uploads/2020/10/2020_6_3_3.pdf |
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| Summary: | The morphology and anatomy of a paragenetic intergrowth of REE minerals (xenotime and florencite) from veins of Svodovy Au-REE occurrence (Subpolar Urals) are described. The sequence of crystallization of minerals is identified using the features of internal structure of individuals and aggregates: surfaces of different types, sector boundaries and oscillatory, trend and sectorial zoning. Evidence for a HREE-to-LREE directive crystallization of REE phosphates is given. The linear and volumetric rates of face growth are analyzed. The mechanisms of crystal growh and formation of zoning and surfaces of joint growth of sectors of different faces are discussed. The crystals are studied using an original method of analysis of mineral aggregates with oscillatory zoning. |
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| ISSN: | 2313-545X 2782-2044 |