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Biotite from
Milford, Worcester County, Massachusetts, USA


Locality type:Town
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 Milford, Worcester County, Massachusetts, USA
Data Identifiers
Mindat Occurrence Record ID:243764
Long-form Identifier:1:3:243764:4
GUID (UUID V4):0
Nearest other occurrences of Biotite
11.0km (6.8 miles) ⓘAggregate Industries Quarry (Bayer-Mingolla Quarry; Trimount Quarry), Ashland, Middlesex County, Massachusetts, USA
13.4km (8.3 miles) ⓘBlanchard Quarries, Uxbridge, Worcester County, Massachusetts, USA
16.8km (10.4 miles) ⓘGrants Mills, Cumberland, Providence County, Rhode Island, USA
17.4km (10.8 miles) ⓘJ. G. Cloyse quarry, Framingham, Middlesex County, Massachusetts, USA
18.8km (11.7 miles) ⓘCumberland Hill, Cumberland, Providence County, Rhode Island, USA
21.4km (13.3 miles) ⓘMarlborough Junction locality, Marlborough, Middlesex County, Massachusetts, USA
22.6km (14.0 miles) ⓘMaple St. locality, Marlborough, Middlesex County, Massachusetts, USA
23.0km (14.3 miles) ⓘIndian Head Hill, Marlborough, Middlesex County, Massachusetts, USA
24.3km (15.1 miles) ⓘConklin Quarry, Lime Rock, Lincoln, Providence County, Rhode Island, USA
29.0km (18.1 miles) ⓘRoute 62 locality (Potash Hill), Hudson, Middlesex County, Massachusetts, USA
References
Emerson, 1917. Geology of MA & RI
 
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