Bismuth from
USA | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
(2005) Mineral Resources Data System (MRDS), US Geological Survey. | |
(2005) Mineral Resources Data System (MRDS), US Geological Survey. | |
(2005) Mineral Resources Data System (MRDS), US Geological Survey. | |
USGS OFR 87-410 | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |