Glass firing- 1300 to 1500 degrees
temperature chart for ceramics
http://www.bigceramicstore.com/information/ConeChart.html
Making glass molds
http://www.ehow.com/how_8711869_make-glass-molds.html
Clay
type: silver clay
PMC
http://www.silver-clay.com/nmclay-bin/shop1.pl/page=PMC.htm/SID=1330837183.17184
