Answer: chalcedonies

AnswerCrossword Clue
CHALCEDONIESAgates.
chalcedoniesCHALCEDONY, a crystalline form of quartz, microscopically fibrous with waxy luster also CALCEDONY
chalcedoniesA microcrystalline type of quartz occurring in several different forms, including onyx, agate, and jasper