Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Fergusonite-(Y) from
Karpniki pegmatite, Karpniki, Gmina Mysłakowice, Karkonosze County, Lower Silesian Voivodeship, Poland


Locality type:Pegmatite
Classification
Species:Fergusonite-(Y)
Formula:YNbO4
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Fergusonite-(Y) data
Locality Data:Click here to view Karpniki pegmatite, Karpniki, Gmina Mysłakowice, Karkonosze County, Lower Silesian Voivodeship, Poland
Data Identifiers
Mindat Occurrence Record ID:1280216
Long-form Identifier:1:3:1280216:4
GUID (UUID V4):0
Nearest other occurrences of Fergusonite-(Y)
1.7km (1.1 miles) ⓘKarpniki #4 pegmatite, Karpniki, Gmina Mysłakowice, Karkonosze County, Lower Silesian Voivodeship, Poland
2.0km (1.3 miles) ⓘKarpniki #3 pegmatite, Krogulec, Gmina Mysłakowice, Karkonosze County, Lower Silesian Voivodeship, Poland
9.0km (5.6 miles) ⓘSosnówka #1 pegmatite, Sosnówka, Gmina Podgórzyn, Karkonosze County, Lower Silesian Voivodeship, Poland
9.1km (5.7 miles) ⓘSosnówka #2 pegmatite, Sosnówka, Gmina Podgórzyn, Karkonosze County, Lower Silesian Voivodeship, Poland
10.5km (6.5 miles) ⓘKopki Hill, Jelenia Góra, Lower Silesian Voivodeship, Poland
15.6km (9.7 miles) ⓘRudzianki pegmatite, Zachełmie, Gmina Podgórzyn, Karkonosze County, Lower Silesian Voivodeship, Poland
20.8km (12.9 miles) ⓘMichałowice granite quarry, Piechowice, Karkonosze County, Lower Silesian Voivodeship, Poland
26.5km (16.4 miles) ⓘSzklarska Poręba Huta granite quarry, Szklarska Poręba, Karkonosze County, Lower Silesian Voivodeship, Poland
27.5km (17.1 miles) ⓘSkalna Brama pegmatite, Szklarska Poręba, Karkonosze County, Lower Silesian Voivodeship, Poland
29.3km (18.2 miles) ⓘPaszowice quarry, Gmina Paszowice, Jawor County, Lower Silesian Voivodeship, Poland
References
Matyszczak, Witold (2018) Liandratite from Karkonosze pegmatites, Sudetes, Southwestern Poland. Mineralogy and Petrology, 112 (3) 357-370 doi:10.1007/s00710-017-0537-8
 
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