quartz glass
quartz
vitreous silica
lechatelierite
crystal **

Dropping the lamp could result in an explosion, sending hot quartz glass flying.

Among his achievements were the development of a process to melt rock crystal at around 2000 C to produce quartz glass.

The quartz glass produced by the company was almost entirely free of defects and was of outstanding purity.

Gruber pushed ahead with operations in the fields of quartz glass, precious metal chemistry and special metals.

In the late 1960s, Heraeus also produced ultra-pure isotropic/homogeneous quartz glass for space exploration.

This special optical quartz glass was used in retroreflectors set up on the moon during the Apollo landings.

Heraeus also developed a new process for making high-quality synthetic quartz glass from silicon tetrachloride.

High pressure lamps use quartz glass, and as such do not filter UVC.

Our supply of glass is running low, and we need quartz glass for the photocells.

Optical fibres are made from doped quartz glass.