The mine is over its in the cave past the carpenters house all the way at the end of the cave talk to the guy at the door between 6am-5pm and you'll get in, when you leave it will be 5pm. You will find the following and they sell for what I have listed here: Iron ore: 100 G Moonlight stone: 500 G Blue stone: 700 G--Also take Blue stones to the souvenir shop owner. He will make items in his shop available to you in exchange. Pontana Root: 800 G Take these roots to the medicine shop owner to gain access to the third potion. Rare Metal: 1000 G Take rare metal to Rick and he will invent something for you.