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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Kidwellite from
Jacobssegen mine, Bremthal, Eppstein, Main-Taunus-Kreis, Darmstadt, Hesse, Germany


Locality type:Mine
Classification
Species:Kidwellite
Formula:NaFe3+9+x(PO4)6(OH)11 · 3H2O, x = 0.33
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Kidwellite data
Locality Data:Click here to view Jacobssegen mine, Bremthal, Eppstein, Main-Taunus-Kreis, Darmstadt, Hesse, Germany
Data Identifiers
Mindat Occurrence Record ID:1508564
Long-form Identifier:1:3:1508564:3
GUID (UUID V4):0
Nearest other occurrences of Kidwellite
29.7km (18.4 miles) ⓘBirkenkopf quarry, Mensfelden, Hünfelden, Limburg-Weilburg, Giessen Region, Hesse, Germany
34.9km (21.7 miles) ⓘMark Mine, Weinbach, Limburg-Weilburg, Giessen Region, Hesse, Germany
53.8km (33.4 miles) ⓘRotläufchen Mine, Waldgirmes, Lahnau, Lahn-Dill-Kreis, Giessen Region, Hesse, Germany
55.1km (34.2 miles) ⓘSchöne Aussicht Mine, Dernbach, Wirges, Westerwaldkreis, Rhineland-Palatinate, Germany
78.3km (48.6 miles) ⓘHollertszug Mine (Hollerter Zug Mine), Dermbach, Herdorf, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
80.1km (49.8 miles) ⓘLouise Mine, Bürdenbach, Altenkirchen-Flammersfeld, Altenkirchen, Rhineland-Palatinate, Germany
References
www.mineralienatlas.de (n.d.) https://www.mineralienatlas.de/?l=37327
 
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