Lechatelierite (Noun)
Meaning
Colorless glass made of almost pure silica.
Classification
Nouns denoting substances.
Examples
- Lechatelierite is the high-temperature polymorph of pure silica or silicon dioxide, and forms colorless glass.
- In a typical high-temperature quartz experiment, lechatelierite often appears at higher temperatures in close association with cristobalite.
- In the microcrystal structure, the highly temperature-sensitive polymorph changes may take place only during cooling of melted lechatelierite particles.
- Lechatelierite, a pure silica polymorph having high stability at high temperatures, occurs as yellow or colorless glass associated with brown opal.
- This means that in lechatelierite, pure silica forms usually exhibit yellow colors which upon mild interaction could turn into colorless.