Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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Biotite from
Smith Graphite property (George W. Smith property), Clintonville, Chesterfield Township, Clinton County, New York, USA


Locality type:Property
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 Smith Graphite property (George W. Smith property), Clintonville, Chesterfield Township, Clinton County, New York, USA
Data Identifiers
Mindat Occurrence Record ID:117316
Long-form Identifier:1:3:117316:1
GUID (UUID V4):0
Nearest other occurrences of Biotite
23.1km (14.3 miles) Keene, Keene Township, Essex County, New York, USA
34.5km (21.5 miles) Mineville, Moriah Township, Mineville Mining District, Essex County, New York, USA
37.7km (23.4 miles) Mineville Mines (Adirondack Ore Mines), Moriah Township, Mineville Mining District, Essex County, New York, USA
43.8km (27.2 miles) Chateaugay iron mines, Lyon Mountain, Clinton County, New York, USA
46.6km (29.0 miles) Roe spar bed (Roe Spar pegmatite; Roe mine; Spar Bed Hill), Crown Point Center, Crown Point Township, Essex County, New York, USA
51.4km (31.9 miles) Unnamed pegmatite, Kushaqua, Franklin County, New York, USA
51.8km (32.2 miles) Crown Point Center, Crown Point Township, Essex County, New York, USA
53.3km (33.1 miles) Sanford Hill Body (Sanford Mine), Town of Newcomb (Tahawus), Essex County, New York, USA
53.7km (33.4 miles) Crown Point Spar Company Quarry, Breeds Hill, Crown Point Center, Crown Point Township, Essex County, New York, USA
56.0km (34.8 miles) Betsy Cook prospect, Ticonderoga Township, Essex County, New York, USA
References
 
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