Abstract
A partial study of hydrothermal crystallisation at 250 and 415 °C in the system BaO–B2O3–SiO2–H2O has shown the ready formation of barium silicates, borates, and borosilicates. Of five barium silicates one could not be identified with previously synthesised silicates. Also eleven barium borates and five out of six barium borosilicates could not be identified and may be, or include, novel species. All the compounds have been characterised in various ways. Three of the borosilicates have BaO/B2O3∼ 1 and O/(B + Si)∼ 2 as with tectosilicates. However one of these at least appears to contain hydroxyl water and all three disobey Lowenstein's rule. Three additional phases could not be classified as silicate, borate, or borosilicate because they were grown only in mixtures of crystalline phases.
Sign-in/Register to access full text options 
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.
