Lechatelierite

Lechatelierite is a natural silica glass (amorphous silicon dioxide), which is formed in nature by the melting of quartz sand at temperatures of about 1,700 ° C.

Lechatelierite has been demonstrated in fulgurites ( flash tubes ). In addition Lechatelierite can occur in tektites and Impaktgläsern, which are formed when a large meteorite impact.