1) Lechatelierite 
A transparent, colourless crystal, made by fusing pure quartz sand, which transmits ultraviolet light. ... (05 Mar 2000) ... 
Trade name for crackled-effect art glass developed by the English designer Frederick carder for the steuben glassworks in the USA. A gather of molten glass was dipped into cold water, which created a fine network of cracks on the outer surface. The glass was then reheated to fuse the cracks and rolled over powdered glass. The whole was then covered …...
Type: Term Definitions: 1. a transparent, colorless crystal, made by fusing pure quartz sand, which transmits ultraviolet light.
[n] - colorless glass made of almost pure silica
quartz 1 vitreous silica noun colorless glass made of almost pure silica
lechatelierite.