Common Name of Silicon Dioxide
This page is the CodyCross answer for the clue below from Café, Group 1322, Puzzle 3 (Croque Madame).
Question is: Common Name of Silicon Dioxide
and the answer is: QUARTZ
Word Meaning:
QUARTZ — (mineralogy) The most abundant mineral on the earth's surface, of chemical composition silicon dioxide, SiO₂. It occurs in a variety of forms, both crystalline and amorphous. Found in every environment.
Definitions from Wiktionary.