| 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 |
| Comments: | Part of the assemblage quartz, feldspar, pyroxene, amphibole, sphene, zircon and biotite. |
| Quality for species: | Rock forming mineral/non-crystalline/little interest for collectors.(##) |
| Abundance at site: | Common |
| 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 North Street mall, Danbury, Fairfield County, Connecticut, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 805102 |
| Long-form Identifier: | 1:3:805102:8 |
| GUID (UUID V4): | a2a5eadb-39fd-4f68-80e5-68355e34e158 |
| Nearest other occurrences of Biotite |
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|
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| 1.7km (1.0 miles) | ⓘDanbury, Fairfield County, Connecticut, USA |
| 3.7km (2.3 miles) | ⓘWestern Connecticut State College, Danbury, Fairfield County, Connecticut, USA |
| 4.1km (2.5 miles) | ⓘAgstone Company Limestone Quarry, Danbury, Fairfield County, Connecticut, USA |
| 4.3km (2.7 miles) | ⓘOld Quarry Nature Center, Danbury, Fairfield County, Connecticut, USA |
| 6.7km (4.2 miles) | ⓘU. S. Route 7 Expressway (Danbury line to Iron Works District), Brookfield, Fairfield County, Connecticut, USA |
| 8.7km (5.4 miles) | ⓘU. S. Route 7 Expressway (Brookfield Bypass), Brookfield, Fairfield County, Connecticut, USA |
| 13.6km (8.5 miles) | ⓘInterstate 84 road cuts, Town of Southeast, Putnam County, New York, USA |
| 14.0km (8.7 miles) | ⓘRedding Glen (Redding Ridge), Redding (Reading), Fairfield County, Connecticut, USA |
| 14.9km (9.3 miles) | ⓘRidgefield, Fairfield County, Connecticut, USA |
| 15.5km (9.6 miles) | ⓘTilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA |
| References |
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