| 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 |
| Age information |
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| Maximum recorded age: | 248 Ma |
| Minimum recorded age: | 203 Ma |
| Sample ages: | | Recorded age | Geologic Time | Sample | Dating method |
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| 1 | 248 to 203 Ma | Triassic | - | K-Ar |
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| Sample references: | |
| 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 Fanshan Mine, Zhuolu County, Zhangjiakou, Hebei, China |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 461067 |
| Long-form Identifier: | 1:3:461067:0 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 58.0km (36.0 miles) | ⓘDongping Mine, Dongping Au-Te ore field, Shuiquangou Complex, Chongli District, Zhangjiakou, Hebei, China |
| 73.5km (45.7 miles) | ⓘZhaojiagou Au deposit (Chaojiagou Au deposit), Chicheng County, Zhangjiakou, Hebei, China |
| 75.3km (46.8 miles) | ⓘHuangtuliang Au deposit, Zhenningpu, Chicheng County, Zhangjiakou, Hebei, China |
| 88.5km (55.0 miles) | ⓘAntuoling Mo deposit, Laishui County, Baoding, Hebei, China |
| 94.8km (58.9 miles) | ⓘDazhuangke Mo-W deposit, Changping District, Beijing, China |
| References |
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