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Biotite from
Dummerston granite quarry, Dummerston, Windham County, Vermont, 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 Dummerston granite quarry, Dummerston, Windham County, Vermont, USA
Data Identifiers
Mindat Occurrence Record ID:128049
Long-form Identifier:1:3:128049:4
GUID (UUID V4):0
Nearest other occurrences of Biotite
13.6km (8.4 miles) ⓘUS highway 5 road cut, Putney, Windham County, Vermont, USA
21.5km (13.3 miles) ⓘBemis Limestone Quarry, Athens, Athens, Windham County, Vermont, USA
21.7km (13.5 miles) ⓘWilmington, Windham County, Vermont, USA
24.9km (15.5 miles) ⓘWhitingham, Windham County, Vermont, USA
26.3km (16.4 miles) ⓘGrafton Quarry, Grafton, Windham County, Vermont, USA
27.7km (17.2 miles) ⓘBellows Falls, Rockingham, Windham County, Vermont, USA
31.0km (19.3 miles) ⓘKirk No. 2 Quarry, Gilsum, Cheshire County, New Hampshire, USA
31.5km (19.6 miles) ⓘNichols Quarry, Gilsum, Cheshire County, New Hampshire, USA
31.5km (19.6 miles) ⓘBeauregard Mine, Alstead, Cheshire County, New Hampshire, USA
32.0km (19.9 miles) ⓘFrench Mine, Alstead, Cheshire County, New Hampshire, USA
References
Dale, T. Nelson (1923) The commercial granites of New England. Bulletin 738. US Geological Survey doi:10.3133/b738
Rocks & Min. Vol. 71, (1996)
 
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