Molybdenite from Chester County, Pennsylvania, USA
USA | |
| Mineralogical Record, 25(2),pp:105-120. |
| Mineralogy of Pennsylvania-1922 Samuel S. Gordon, pg. 181 |
USA | |
| Mineralogical Record, 25(2),pp:105-120. |
| Mineralogy of Pennsylvania-1922 Samuel S. Gordon, pg. 181 |