CALXES is a playable word

calx Scrabble® Dictionary

noun
pl. calxes or calces
a mineral residue
49 Playable Words can be made from "CALXES"
   2-Letter Words (8 found)
   3-Letter Words (19 found)
   4-Letter Words (15 found)
   5-Letter Words (6 found)
   6-Letter Words (1 found)