Glass.Ceramic heating, Movie Library – Halogen Point Heater Heating, melting and vitrification of rocks series 33 – Biotite Tuesday November 19th, 2019 HEAT-TECH info This video is a heating, melting and vitrification of Biotite by the Halogen Point Heater. Please check the following site for more information. Related page: Heating, melting and vitrification of rocks series 4 – Turbidite Heating, melting and vitrification of rocks series 6 – Pink-Granite Heating, melting and vitrification of rocks series 13 – Brick Heating, melting and vitrification of rocks series 23 – Sandstones Heating, melting and vitrification of rocks series 29 – Blue Aragonite Green glass coating-1 Heating, melting and vitrification of rocks series 32 – Silicic plaster (Anhydrite) Heating, melting and vitrification of rocks series 39 – Amphibole (Hornblede)