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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Stilpnomelane from
Husebyåsen prospect, Vesterøya, Sandefjord, Vestfold, Norway


Locality type:Prospect
Classification
Species:Stilpnomelane
Formula:K4Fe482+[Si64Al8]O164(OH)52 · nH2O
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Stilpnomelane data
Locality Data:Click here to view Husebyåsen prospect, Vesterøya, Sandefjord, Vestfold, Norway
Data Identifiers
Mindat Occurrence Record ID:840455
Long-form Identifier:1:3:840455:8
GUID (UUID V4):0
Nearest other occurrences of Stilpnomelane
0.7km (0.4 miles) ⓘVindalsvingen, Vindal, Vesterøya, Sandefjord, Vestfold, Norway
1.5km (0.9 miles) ⓘBuer, Vesterøya, Sandefjord, Vestfold, Norway
11.3km (7.0 miles) ⓘHedrum Quarry, Lågendalen, Hedrum, Larvik Commune, Vestfold, Norway
13.0km (8.1 miles) ⓘStokke Quarry, Stokke, Sandefjord, Vestfold, Norway
14.3km (8.9 miles) ⓘBratthagen 1, Lågendalen, Hedrum, Larvik Commune, Vestfold, Norway
24.1km (15.0 miles) ⓘJohs Nilsens Quarry, Tvedalen, Larvik Commune, Vestfold, Norway
30.2km (18.8 miles) ⓘE18 roadcuts, Slevolden, Porsgrunn, Telemark, Norway
30.3km (18.8 miles) ⓘKjølsrød, Bjørkedalen, Porsgrunn, Telemark, Norway
43.5km (27.0 miles) ⓘBreigangen Mine, Fossum Iron Mines, Skien, Telemark, Norway
53.8km (33.4 miles) ⓘValberg Quarry, Valberg, Kragerø, Telemark, Norway
References
Berge, Svein Arne (2013) Mineralene i Husebyåsen feltspatbrudd, Vesterøya, Sandefjord [The minerals of Husebyåsen feldspar quarry, Vesterøya, Sandefjord]. Norsk Bergverksmuseum Skrift, 50. 93-99
 
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