WEB LINKS

www.gequartz.com - General fused quartz info

www.heraeus-quarzglas.de - General fused quartz and fused silica info

www.schott.com - Schott flat glass products info (borofloat, robax, etc.)

www.schott.com - Schott tubing info

www.schott.com - Schott thin and display glass info

www.precisionsapphiretechnologies.com - Eastern European affiliate

www.alumaxbath.com - For detailed information on Tempered vs. Annealed glass

www.glasswebsite.com - Great resource for glass history and technical info

www.c-optical.com - Recommended company for optical coating services and
    information. Please mention Rayotek if you contact them.