kokuseki
1. national gemstone
Noun
#309776
1. national gemstone
1. Probably a national stone.
1. It is not a national treasure.; It is not a national stone.
1. With national stone; Using national stone
1. Was a national stone.
1. Wasn't a national treasure.; Wasn't a national rock.
1. Not national stone.; Not a national rock.
1. It was the national stone.
1. If it were a national treasure; If it was a national treasure
1. Wasn't a national treasure.; Wasn't a country rock.