Vote for your favorite mineral in #MinCup26! - Arsenuranylite vs. Talc
It's a pair of soft and lovely minerals as Stichtite and Talc compete for your votes.
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Biotite from
Dalton, Berkshire 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 Dalton, Berkshire County, Massachusetts, USA
Data Identifiers
Mindat Occurrence Record ID:244809
Long-form Identifier:1:3:244809:1
GUID (UUID V4):0
Nearest other occurrences of Biotite
18.2km (11.3 miles) ⓘMount Greylock, Adams, Berkshire County, Massachusetts, USA
18.3km (11.3 miles) ⓘBetts Manganese Mines, Plainfield, Hampshire County, Massachusetts, USA
23.3km (14.5 miles) ⓘClark Ledge pegmatite locality, Chesterfield, Hampshire County, Massachusetts, USA
24.3km (15.1 miles) ⓘForge Hill iron mines (Old Hawley iron mines), West Hawley, Hawley, Franklin County, Massachusetts, USA
26.1km (16.2 miles) ⓘOld Mine, Chester Emery Mines, Chester, Hampden County, Massachusetts, USA
26.3km (16.4 miles) ⓘHoosac Tunnel Soapstone Quarry (Hoosac Talc Mine), Rowe, Franklin County, Massachusetts, USA
26.4km (16.4 miles) ⓘChester Emery Mines, Chester, Hampden County, Massachusetts, USA
27.7km (17.2 miles) ⓘMelvin Mine, Chester Emery Mines, Chester, Hampden County, Massachusetts, USA
27.7km (17.2 miles) ⓘWright Mine, Chester Emery Mines, Chester, Hampden County, Massachusetts, USA
28.3km (17.6 miles) ⓘHawks Pyrite Mine (Mount Peak Mine), Charlemont, Franklin County, Massachusetts, USA
References
Gleba, Peter P. (2008) Massachusetts Mineral and Fossil Localities. Kreueger Enterprises, Inc.
 
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