Biotite from Graham County, Arizona, USA
USA | |
| MRDS database Dep. ID #10039508, MRDS ID #M050191. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| MRDS database Dep. ID #10026888, MRDS ID #M000791. |
USA | |
| MRDS database Dep. ID #10039508, MRDS ID #M050191. |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. |
| MRDS database Dep. ID #10026888, MRDS ID #M000791. |