صون

صَوَّانٌ ذ [ Flint-stone; and flint-stones: thus in the present day:] a sort of stones, (S, Msb,) in which is hardness; (Msb;) hard stones, (M, K,) of a certain sort, (K,) with which fire is struck: or, as some say, certain black stones which are not hard: (M:) or a sort of hard stones, which, when fire smites it, crackles (يُفَقِّعُ) and cracks, and sometimes fire is struck with it, but it is not fit for [ making ] time, nor for heating for the purpose of roasting thereon: (Az, TA:) one thereof is called ↓ صَوَّانَةٌ. (S, M, Msb, K.)