Fluorspar bentonite kyanite Kids Who Code
Kyanite an overview | ScienceDirect Topics. Lehtinen, in Mineral Deposits of Finland, 2015. Sillimanite Group Minerals. These minerals include the Al 2 SiO 5 polymorphs sillimanite, kyanite, and andalusite, all theoretically with wt% Al 2 O sillimanite is known to occur in many highgrade gneisses and in some quartzites, no potential deposits have yet been found in Finland.