"Minnesota Iron Mine" is the name of the mine. Sorry I don't have the history of why it was named that. It is near the town of Yerington. (where the Anaconda copper mine is, I think it was closed in the 70's) It is the only iron skarn in Nevada that I am aware of. A lot of the magnetite was used for making concrete for ballast in large ocean ships. There is a lot of different minerals there for specimen collectors, lots of small pyrite crystals. I found some around 1" but broke them when I broke the rock open. A number of rock clubs have made field trips there.
Next week end it's off to northern California. Friends of mine have invited me to go with them and the Antioch club to the Spider Rhodonite mine that is owned by the San Francisco club. It will be a fee dig. I think that they were looking for a volunteer to swing a sledge hammer, the rhodonite is in the middle of boulders that have to be broken to get to.
