Glass.Ceramic heating, Movie Library – Halogen Point Heater Heating, melting and vitrification of rocks series 28 – Snowflake obsidian Wednesday July 12th, 2017 HEAT-TECH info This video is a heating, melting and vitrification of Snowflake obsidian by the Halogen Point Heater. Please check the following site for more information. Related page: Heating, melting and vitrification of rocks series 6 – Pink-Granite Heating, melting and vitrification of rocks series 7 – Basalt Heating, melting and vitrification of rocks series 8 – Limestone Heating, melting and vitrification of rocks series 9 – Granite Heating, melting and vitrification of rocks series 23 – Sandstones Heating, melting and vitrification of rocks series 26 – Chalcopyrite Heating, melting and vitrification of rocks series 30 – Amethyst Heating, melting and vitrification of rocks series 33 – Biotite