The bill would have permanently ended new patents for mining claims , imposed a royalty of 4 % of gross revenues on existing mining extracting from unpatented mining claims .
The bill would have permanently placed an 8 % royalty on new mining operations .
The bill would have permanently ended new patents for mining claims , imposed a royalty of 4 % of gross revenues on existing mining extracting from unpatented mining claims , and placed an 8 % royalty on new mining operations .