玄石 is read as げんせき (genseki) and means magnet.
げんせき
genseki
げんしょうせき
type of slate (from Miyagi pref.)
くろと
woman in the nightlife business
げんかん
entrance
げんまい
unpolished rice
くろうとかたぎ
professionalism
げんかんさき
げんかんぐち
gateway (to a region, etc.)
げんかんばん
doorkeeper
げんどう
hiding one's intelligence to avoid being different from the common people
くろうとすじ
professionals
くろごめ
black rice
げんまいぱん
steamed bread made with unpolished rice flour