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
Bełczyna, Gmina Wleń, Lwówek Śląski County, Lower Silesian Voivodeship, Poland


Locality type:Village
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 Bełczyna, Gmina Wleń, Lwówek Śląski County, Lower Silesian Voivodeship, Poland
Data Identifiers
Mindat Occurrence Record ID:1290038
Long-form Identifier:1:3:1290038:7
GUID (UUID V4):0
Nearest other occurrences of Biotite
8.8km (5.5 miles) ⓘWielisławka Hill, Sędziszowa, Gmina Świerzawa, Złotoryja County, Lower Silesian Voivodeship, Poland
13.8km (8.6 miles) ⓘWilcza Góra quarry, Wilków, Gmina Złotoryja, Złotoryja County, Lower Silesian Voivodeship, Poland
18.0km (11.2 miles) ⓘZłomy granite quarry, Jelenia Góra, Lower Silesian Voivodeship, Poland
18.4km (11.4 miles) ⓘKopki Hill, Jelenia Góra, Lower Silesian Voivodeship, Poland
19.0km (11.8 miles) ⓘCieplice-1 borehole, Cieplice Śląskie-Zdrój, Jelenia Góra, Lower Silesian Voivodeship, Poland
21.0km (13.1 miles) ⓘCieplice granite quarry, Cieplice Śląskie-Zdrój, Jelenia Góra, Lower Silesian Voivodeship, Poland
25.6km (15.9 miles) ⓘMichałowice granite quarry, Piechowice, Karkonosze County, Lower Silesian Voivodeship, Poland
26.7km (16.6 miles) ⓘWyrwak Hill, Kamień, Gmina Mirsk, Lwówek Śląski County, Lower Silesian Voivodeship, Poland
26.8km (16.7 miles) ⓘDzicza Góra, Rędziny, Gmina Kamienna Góra, Kamienna Góra County, Lower Silesian Voivodeship, Poland
27.5km (17.1 miles) ⓘSn mine, Gierczyn, Gmina Mirsk, Lwówek Śląski County, Lower Silesian Voivodeship, Poland
References
Lis, Józef, Sylwestrzak, Hubert (1986) Minerały Dolnego Śląska [Minerals of the Lower Silesia]. Wydawnictwa Geologiczne.
 
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