| Locality type: | Occurrence |
| 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 Unknown Quartz - Feldspar - Mica Occurrence (MRDS - 10016599), South Platte Pegmatite Mining District, Jefferson County, Colorado, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 377657 |
| Long-form Identifier: | 1:3:377657:5 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Biotite |
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| 1.2km (0.8 miles) | ⓘOregon No. 2 pegmatite (Raleigh Peak No. 3 pegmatite), South Platte Pegmatite Mining District, Jefferson County, Colorado, USA |
| 1.6km (1.0 miles) | ⓘSusy Belle Occurrence, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA |
| 3.2km (2.0 miles) | ⓘLittle Patsy pegmatite, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA |
| 4.6km (2.9 miles) | ⓘSeerie pegmatite (Cooper pegmatite), South Platte Pegmatite Mining District, Jefferson County, Colorado, USA |
| 5.0km (3.1 miles) | ⓘWhite Cloud pegmatite, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA |
| 9.7km (6.0 miles) | ⓘButterfield pegmatites, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA |
| 14.0km (8.7 miles) | ⓘThree Musketeers Mine, Devils Head Pegmatite Mining District, Douglas County, Colorado, USA |
| 16.5km (10.2 miles) | ⓘMcGuire pegmatite (Lone Lode; Lonesome pegmatite), Park County, Colorado, USA |
| 17.4km (10.8 miles) | ⓘDevils Head Occurrence (C.M.S.), Devils Head Pegmatite Mining District, Douglas County, Colorado, USA |
| 18.2km (11.3 miles) | ⓘCramer No. 2 Quarry (Snowdrift Quarry), Devils Head Pegmatite Mining District, Douglas County, Colorado, USA |
| References |
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