Cubic __, Crystal Stone Used Instead of Diamonds
Puzzle 10 of Team Building Pack
Question
Cubic __, Crystal Stone Used Instead of Diamonds
Answer
ZIRCONIA
Word Meaning:
ZIRCONIA — (chemistry) The oxide of zirconium, obtained as a white powder, and possessing both acid and basic properties. On account of its infusibility, and brilliant luminosity when incandescent, it is used as an ingredient of sticks for the Drummond light.
Definitions from Wiktionary.