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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Nontronite from
Fuchsbau quarry, Tröstauer Forst-West, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany


Locality type:Quarry
Classification
Species:Nontronite
Formula:Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Nontronite data
Locality Data:Click here to view Fuchsbau quarry, Tröstauer Forst-West, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany
Data Identifiers
Mindat Occurrence Record ID:76354
Long-form Identifier:1:3:76354:3
GUID (UUID V4):0
Nearest other occurrences of Nontronite
5.5km (3.4 miles) ⓘUranium deposit, Rudolfstein, Weißenstadt, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany
11.1km (6.9 miles) ⓘStreuspitz, Weißenstadter Forst-Nord, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany
12.7km (7.9 miles) ⓘReinersreuth quarry (Köhlerloh quarry), Reinersreuth, Sparneck, Hof District, Upper Franconia, Bavaria, Germany
20.3km (12.6 miles) ⓘGroßer Teichelberg (Teichelberg; Teichlberg), Pechbrunn, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
23.0km (14.3 miles) ⓘBasalt works, Triebendorf, Wiesau, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
31.0km (19.3 miles) ⓘPfaffenreuth, Leonberg, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
44.0km (27.3 miles) ⓘLudwig-Vereinigt Feld Mine, Schönbrunn, Bösenbrunn, Vogtlandkreis, Saxony, Germany
48.4km (30.0 miles) ⓘTännig, Bad Lobenstein, Saale-Orla District, Thuringia, Germany
58.1km (36.1 miles) ⓘHagendorf South Pegmatite, Hagendorf, Waidhaus, Neustadt an der Waldnaab District, Upper Palatinate, Bavaria, Germany
59.3km (36.9 miles) ⓘHenneberg Quarry, Weitisberga, Wurzbach, Saale-Orla District, Thuringia, Germany
References
Lapis, 10 (7/8), 15-26+81
 
and/or  
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