I found a very rare mineral that is identified by the museum as "Oxidized Copper with Quartz Dome". It's all natural. Extraordinary phenomenon. How much is it worth? It's probably one of a kind in the whole entire world.
Welcome to Treasure Net and I hope you will stay and share more amazing items! I have no idea as to it's worth but I would bet that it is priceless and you may be right, it may be one of a kind. Thanks for posting it!