Below are possible answers for the crossword clue Cubic ___ (gem).
8 letter answer(s) to cubic ___ (gem)
ZIRCONIA
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
a white crystalline oxide; used in refractories and in insulation and abrasives and enamels and glazes
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