Psilomelane from Mianyang, Sichuan, China
China | |
| Jiuling Zhang (1982): Geology and Prospecting 18(2), 26-40 |
| Jiuling Zhang (1982): Geology and Prospecting 18(2), 26-40 |
China | |
| Jiuling Zhang (1982): Geology and Prospecting 18(2), 26-40 |
| Jiuling Zhang (1982): Geology and Prospecting 18(2), 26-40 |