Associations to the word «Tridymite»

TRIDYMITE, noun. (mineral) A rare mineral of volcanic rocks that solidified at a high temperature, with the chemical composition silicon dioxide, SiO2. Tridymite is chemically identical to quartz, but has a different crystal structure. Sometimes contains sodium aluminum silicate, which seems to be expelled when quartz solidifies at lower temperatures.

TRIDYMITE, noun. A mineral form of silica.