https://page.auctions.yahoo.co.jp/auction/l456929071

https://page.auctions.yahoo.co.jp/auction/t580611290
は普通の蛍石？


https://page.auctions.yahoo.co.jp/auction/r258261472

https://page.auctions.yahoo.co.jp/auction/b324428169

https://page.auctions.yahoo.co.jp/auction/m260376778

はアレ？

見分け方は？