Answer: flints

AnswerCrossword Clue
FLINTSSpark-producing stones
FLINTSStones for starting fires
FLINTSFire-striking stones
FLINTSPrehistoric tools
FLINTSFire stones.
FLINTSParts of cigarette lighters.
FLINTSHard pieces of quartz.
FLINTSPrimitive implements.
FLINTSLighter essentials.
FLINTSPieces of hard stone.
FLINTSLighter needs
FLINTSLighters need these
FLINTSSpark makers
FLINTSFire-starting stones
FLINTSSpark producers
flintshard stone that strikes sparks