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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Thortveitite from
Szklarska Poręba Huta granite quarry, Szklarska Poręba, Karkonosze County, Lower Silesian Voivodeship, Poland


Locality type:Quarry
Classification
Species:Thortveitite
Formula:Sc2Si2O7
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Thortveitite data
Locality Data:Click here to view Szklarska Poręba Huta granite quarry, Szklarska Poręba, Karkonosze County, Lower Silesian Voivodeship, Poland
Data Identifiers
Mindat Occurrence Record ID:1481598
Long-form Identifier:1:3:1481598:6
GUID (UUID V4):0
Nearest other occurrences of Thortveitite
60.1km (37.3 miles) ⓘGraniczna quarry, Strzegom, Gmina Strzegom, Świdnica County, Lower Silesian Voivodeship, Poland
64.4km (40.0 miles) ⓘA4 Highway tunnel, Thiemendorf, Görlitz District, Saxony, Germany
References
Evans, R., Gołębiowska, Bożena, Groat, Lee, Pieczka, Adam (2018) Crystal Structure of Kristiansenite from Szklarska Poręba, Southwestern Poland. Minerals, 8 (12) 584 doi:10.3390/min8120584
Mil, Karolina; Gołębiowska, Bożena; Mikuš, Tomáš; Jeleň, Stanislav; Dimitrova, Dimitrina; Pieczka, Adam; Włodek, Adam (2026) Bismuth mineralisation and trace-element geochemistry of base-metal sulphides at Szklarska Poręba Huta (Variscan Karkonosze granite, SW Poland): implications for metal distribution and hydrothermal evolution. Ore Geology Reviews, 196. p.107502. doi:10.1016/j.oregeorev.2026.107502
 
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