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Biotite from
McCarthy Quarry, Acton, Middlesex County, Massachusetts, USA


Locality type:Quarry
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view McCarthy Quarry, Acton, Middlesex County, Massachusetts, USA
Data Identifiers
Mindat Occurrence Record ID:682525
Long-form Identifier:1:3:682525:6
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.5km (0.3 miles) ⓘHarris Quarry, Acton, Middlesex County, Massachusetts, USA
10.7km (6.6 miles) ⓘShaker Quarry, Groton, Middlesex County, Massachusetts, USA
14.1km (8.8 miles) ⓘOak Hill Quarry, Westford, Middlesex County, Massachusetts, USA
15.6km (9.7 miles) ⓘBolton Lime Quarries (Bolton Quarry; Whitcomb Quarry; Hildreth Quarry), Bolton, Worcester County, Massachusetts, USA
19.2km (11.9 miles) ⓘPine Hill, Bolton, Worcester County, Massachusetts, USA
20.4km (12.7 miles) ⓘRoute 62 locality (Potash Hill), Hudson, Middlesex County, Massachusetts, USA
20.7km (12.8 miles) ⓘIndian Head Hill, Marlborough, Middlesex County, Massachusetts, USA
22.6km (14.0 miles) ⓘI-93/Dascomb Rd. area, Andover, Essex County, Massachusetts, USA
23.2km (14.4 miles) ⓘBlueberry Mountain Quarry (Blueberry Hill), Woburn, Middlesex County, Massachusetts, USA
23.4km (14.6 miles) ⓘMarlborough Junction locality, Marlborough, Middlesex County, Massachusetts, USA
References
Dale, T. N. (1910). Supplementary Notes on the Commercial Granites of New England (in Contributions to Economic Geology, USGS Bulletin 470).
 
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