Terminology

Borosilicate: A type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having very low coefficents of thermal expansion, making them more resistant to thermal shock than any other type of common glass. Such glass is subjected to less thermal stress and can withstand temperature differentials of about 329F without fracturing. The most common trade names of borosilicate in glass art are Duran, Pyrex, Schott, and Simax.

Glass Frit: Glass that has been granulated.

Fume: A material that has been vaporized from the solid or liquid state to the gas state and re-coalesced to the solid state.

Striking: Any color change in the glass due to heat treatment of some sort.

Stringer: A rod of glass drawn down to less than 3mm in diameter.