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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Wroewolfeite from
Sur les Roches quarry, Bastogne, Luxembourg, Wallonia, Belgium


Locality type:Quarry
Classification
Species:Wroewolfeite
Formula:Cu4(SO4)(OH)6 · 2H2O
Comments:"Wroewolfeite exists as microcrystalline turquoise blue coatings of acicular crystals averaging 100 µm. X-ray powder pattern of this rare mineral agrees with that of wroewolfeite from Loudville mine, Massachusetts, USA (JCPDS 27-1133). Chemical analysis only confirms Cu and S." (Hatert et al., 2000)
Habit:acicular
Colour:turquoise blue
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
Data
Mineral Data:Click here to view Wroewolfeite data
Locality Data:Click here to view Sur les Roches quarry, Bastogne, Luxembourg, Wallonia, Belgium
Data Identifiers
Mindat Occurrence Record ID:85128
Long-form Identifier:1:3:85128:2
GUID (UUID V4):0
Nearest other occurrences of Wroewolfeite
32.8km (20.4 miles) ⓘThier des Carrières, Cahay, Vielsalm, Luxembourg, Wallonia, Belgium
39.0km (24.2 miles) ⓘLa Flèche quarry, Bertrix, Luxembourg, Wallonia, Belgium
83.8km (52.1 miles) ⓘCopper smelter slag locality, Kall, Euskirchen, Cologne, North Rhine-Westphalia, Germany
References
Hatert, F., Deliens, M., Houssa, M., Coune, F. (2000) Native gold, native silver and secondary minerals in the quartz veins from Bastogne, Belgium. Bulletin de l'Institut royal des Sciences naturelles de Belgique, Sciences de la Terre, 70, 223-229.
Hatert, F., Deliens, M., Fransolet, A.-M., Van Der Meersche, E. (2002) Les minéraux de Belgique (2nd ed.) Muséum des Sciences Naturelles, Bruxelles.
 
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