CHERTS is a playable word

chert Scrabble® Dictionary

noun
pl. cherts
a compact rock
46 Playable Words can be made from "CHERTS"
   2-Letter Words (8 found)
   3-Letter Words (16 found)
   4-Letter Words (15 found)
   5-Letter Words (6 found)
   6-Letter Words (1 found)