File:Beryllium fluoride.JPGDescriptionBeryllium fluoride.JPG English: A nugget of beryllium fluoride obtained from Materion. Black spots are carbon. Čeština: Zrnka fluoridu berylnatého
File:BeF2 glass.svgstructure of glassy Silica (SiO2). (svg version) |Source=*[[:Image:Silica.jpg|]] |Date=2008-05-24 19:04 (UTC) |Author=|Permission=see below |other_versions=
File:Betacrist.jpgDescriptionBetacrist.jpg English: Beta-cristobalite Date 12 September 2006 Source Own work Author Ian Swainson (Octopodes at en.wikipedia)