| Locality type: | Mine |
| Classification |
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| Species: | 'Biotite' (not an IMA approved species) |
| Formula: | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Biotite data |
| Locality Data: | Click here to view Gengzhuang Mine, Yangyan river valley, Fanshi Co., Xinzhou, Shanxi, China |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 727389 |
| Long-form Identifier: | 1:3:727389:6 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 2.4km (1.5 miles) | ⓘHouyu Cu-Mo deposit, Yangyan river valley, Fanshi Co., Xinzhou, Shanxi, China |
| 22.5km (14.0 miles) | ⓘYangchaoping Fe deposit, Fanshi Co., Xinzhou, Shanxi, China |
| 25.3km (15.7 miles) | ⓘJingangku Mine, Wutai Co., Xinzhou, Shanxi, China |
| 27.0km (16.8 miles) | ⓘShanyangping Fe deposit, Dai Co., Xinzhou, Shanxi, China |
| 27.2km (16.9 miles) | ⓘHewan breccia, Yixingzhai Au-Ag deposit, Fanshi Co., Xinzhou, Shanxi, China |
| 29.6km (18.4 miles) | ⓘYixingzhai Au-Ag deposit, Fanshi Co., Xinzhou, Shanxi, China |
| 58.3km (36.2 miles) | ⓘQiubudong Ag deposit, Pingshan Co., Shijiazhuang, Hebei, China |
| 58.5km (36.3 miles) | ⓘBeiyingxigou Pb–Zn–Ag deposit, Pingshan Co., Shijiazhuang, Hebei, China |
| 59.2km (36.8 miles) | ⓘMapeng pluton, Fuping County, Baoding, Hebei, China |
| 59.8km (37.2 miles) | ⓘQiushulin Mo deposit, Lingshou Co., Shijiazhuang, Hebei, China |
| References |
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