mineral rights

Wasn't sure where to post this since it covers various topics. Do placer/lode claims also include gemstones? I am interested in prospecting for some sapphires in Montana. The location that I want to check out has both placer and lode claims on it, but that particular area is not a gold-rich...

I recently found what appears to be decent land for sale. ( Mineral Rights ) The location is in Northern California and I've learned through research that the area once produced significant amounts of gold. However, the post is a little bizarre. The guy selling it states "contract to be signed...