Cubic ___ (gem) - Crossword Clue

Below are possible answers for the crossword clue Cubic ___ (gem).

8 letter answer(s) to cubic ___ (gem)

ZIRCONIA
  1. a lustrous grey strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon
  2. a white crystalline oxide; used in refractories and in insulation and abrasives and enamels and glazes

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