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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Gypsum from
Préalle quarry, Heyd, Durbuy, Luxembourg, Wallonia, Belgium


Locality type:Quarry
Classification
Species:Gypsum
Formula:CaSO4 · 2H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Gypsum data
Locality Data:Click here to view Préalle quarry, Heyd, Durbuy, Luxembourg, Wallonia, Belgium
Data Identifiers
Mindat Occurrence Record ID:644191
Long-form Identifier:1:3:644191:3
GUID (UUID V4):0
Nearest other occurrences of Gypsum
4.4km (2.7 miles) ⓘRailway cutting, Barvaux-sur-Ourthe, Durbuy, Luxembourg, Wallonia, Belgium
26.1km (16.2 miles) ⓘHermalle-sous-Huy, Engis, Liège, Wallonia, Belgium
26.1km (16.2 miles) ⓘPrayon, Forêt, Trooz, Liège, Wallonia, Belgium
26.1km (16.2 miles) ⓘHourt quarry, Grand-Halleux, Vielsalm, Luxembourg, Wallonia, Belgium
26.4km (16.4 miles) ⓘLa Rochette, Chaudfontaine, Liège, Wallonia, Belgium
26.7km (16.6 miles) ⓘEngihoul-Antinne, Engis, Liège, Wallonia, Belgium
27.1km (16.9 miles) ⓘChokier, Flémalle-Haute, Flémalle, Liège, Wallonia, Belgium
27.4km (17.1 miles) ⓘCoticule mines (east), Salmchâteau, Vielsalm, Luxembourg, Wallonia, Belgium
27.5km (17.1 miles) ⓘLa Mallieue, Engis, Liège, Wallonia, Belgium
27.7km (17.2 miles) ⓘAndrimont mine, Theux, Liège, Wallonia, Belgium
References
Frank de Wit collection
 
and/or  
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