珪岩けいがん

keigan

1. Not shale.; Not a shale.

1. Was shale.

1. With chert; In chert

1. Of chert; Cherty

1. It is not keigan.; It is not a keyan stone.

1. It's not keigan.; It's not a keyan.

1. It was keigan.; It was a keyan rock.

1. Keiwan desu;

1. It is not keyakushi.; It is not a keyakushi stone.

1. It wasn't chert.; It wasn't flint.

1. Probably chert.; Probably flint.

1. It was not a keyakuga.; It wasn't keyakuga.

1. It wasn't diabase.; It wasn't andesite.

1. Probably chert.; Probably flint.

1. Was not shale.; Was not chert.

1. If/when keiyaku (contract); If it were keiyaku (rock)

1. If/when keiyan (siliceous rock); If it is siliceous rock

1. If/when keigan; When keigan