| Locality type: | Pegmatite |
| 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 Seerie pegmatite (Cooper pegmatite), South Platte Pegmatite Mining District, Jefferson County, Colorado, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 529141 |
| Long-form Identifier: | 1:3:529141:0 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 3.2km (2.0 miles) | ⓘLittle Patsy pegmatite, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA |
| 4.6km (2.9 miles) | ⓘUnknown Quartz - Feldspar - Mica Occurrence (MRDS - 10016599), South Platte Pegmatite Mining District, Jefferson County, Colorado, USA |
| 4.6km (2.9 miles) | ⓘOregon No. 2 pegmatite (Raleigh Peak No. 3 pegmatite), South Platte Pegmatite Mining District, Jefferson County, Colorado, USA |
| 5.1km (3.2 miles) | ⓘButterfield pegmatites, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA |
| 5.8km (3.6 miles) | ⓘSusy Belle Occurrence, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA |
| 8.0km (5.0 miles) | ⓘWhite Cloud pegmatite, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA |
| 15.4km (9.6 miles) | ⓘMcGuire pegmatite (Lone Lode; Lonesome pegmatite), Park County, Colorado, USA |
| 17.5km (10.9 miles) | ⓘBigger Mica Mine (Sweitzer Lode), Clear Creek pegmatite Province, Jefferson County, Colorado, USA |
| 18.5km (11.5 miles) | ⓘThree Musketeers Mine, Devils Head Pegmatite Mining District, Douglas County, Colorado, USA |
| 19.8km (12.3 miles) | ⓘIowa Gulch Occurrence (Iowa Gulch Pegmatite), Jefferson County, Colorado, USA |
| References |
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Seerie pegmatite, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA