Abstract
The genesis of the recently discovered and highly attractive jewelry stone charoite at its only known occurrence remains controversial. The authors present the hydrothermal-metasomatic nature of the charoite paragenesis, including charoite and associated minerals (tinaksite, canasite, miserite, and fedorite, etc.). Formation of charoite metasomatites is related to calc-alkaline metasomatism of mesocratic and melanocratic fenite, shonkinite, and alkaline minettes. The metasomatic column includes circum-ore metasomatites (dark, intermediate in color and composition, light orthoclase zone), charoite ore (lilac zone), and an axial quartz zone. The order of differential mobilities of components (from inert to most mobile) was: SiO2, (K2O + Na2O), (CaO + TiO2), AL2O3, Fe203, (FeO + MnO). Concentrated aqueous solutions of calcium and potassium chlorides were found in fluid inclusions in quartz associated with high-quality charoite.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
