...George Switzer; Roy S. Clarke, Jr.; John Sinkankas; Helen W. Worthing Abstract A chemical analysis of hambergite [Be 2 (OH, F)(BO 3 )] from the Little Three mine, near Ramona, San Diego County, California, disclosed that the mineral from this locality contains 6.0 per cent fluorine. Hambergite from...

...Georg Troll; M.C. Gilbert Abstract Experiments at 1 to 2 kbar total pressure, 600-850 °C aimed at exchanging fluorine and hydroxyl ions in tremolite under controlled conditions of HF and H 2 O fugacities have only been partially successful. The fluorine buffer technique of Munoz and Eugster...

...Frank C. Foley; Phillip W. West Abstract A method for the quantitative determination of fluorine in samples of ground water from North Dakota, which proved reliable for amounts of less than one part per million of fluorine, has also been used successfully for the qualitative determination...

... generated from volatile-rich mantle sources rich in fluorine and water. To clarify the mantle sources of lamproites, we present experimentally determined mineral/melt partition coefficients for fluorine and barium between phlogopite and lamproite melts. Both fluorine and barium are compatible in phlogopite...

... by the Mineralogical Society of America 2022 Mineralogical Society of America Fluorine water thermal stability phlogopite mantle Experimental Halogens in Honor of Jim Webster Volatiles (e.g., hydrogen, nitrogen, carbon, and halogens) are not only present on the surface of the Earth, but also...

...L. V. Zamana Anomalous fluorine contents in nitric hydrothermal waters are considered in the context of water-rock interaction. Study of this phenomenon involves processing and plotting of physicochemical data, correlation and factor analyses, and computation of the fluoride-calcium equilibrium...

...E. U. Petersen; E. J. Essene; D. R. Peacor Abstract The near end-member minerals fluorphlogopite ( X F = 0.96) and fluortremolite ( X F = 0.82) have been found in Grenville marbles near Balmat, New York. These micas and amphiboles, like other fluorine-rich minerals reported in the literature...

...H.A. El-Attar; M.L. Jackson; V.V. Volk Abstract Fluorine loss from hectorite (2.3% F in the <2 μm fraction) upon heating for 24 hours at temperatures of 110° and 300° C was negligible, and at 540° C was less than 3%; however, upon ignition at 950°C for 6 hours, the fluorine loss was 100...

...Tokiti Noda; Rustum Roy Abstract Synthetic fluorine micas have assumed an important part in the literature of crystal chemistry, and the substances themselves are now commercial products. In the commercial operation the intergrowth of crystals and the bonding action of any residual melt make...

...Don R. Baker; Sara Callegaro; Angelo De Min; Martin J. Whitehouse; Andrea Marzoli Abstract Concentrations of fluorine and chlorine were measured in glasses (quenched melts) and coexisting clinopyroxene, orthopyroxene, olivine, and plagioclase in run products of experiments previously used...