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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Dufrénite from
Rotläufchen Mine, Waldgirmes, Lahnau, Lahn-Dill-Kreis, Giessen Region, Hesse, Germany


09756270017364299463561.jpg
Dufrénite, etc.

Rotläufchen Mine, Waldgirmes, Lahnau, Lahn-Dill-Kreis, Giessen Region, Hesse, Germany
02692650017272021339302.jpg
Dufrénite

Rotläufchen Mine, Waldgirmes, Lahnau, Lahn-Dill-Kreis, Giessen Region, Hesse, Germany
03199870017272021353072.jpg
Dufrénite, etc.

Rotläufchen Mine, Waldgirmes, Lahnau, Lahn-Dill-Kreis, Giessen Region, Hesse, Germany
04222150017680013472453.jpg
Dufrénite

Rotläufchen Mine, Waldgirmes, Lahnau, Lahn-Dill-Kreis, Giessen Region, Hesse, Germany
07536010017362095852117.jpg
Dufrénite, etc.

Rotläufchen Mine, Waldgirmes, Lahnau, Lahn-Dill-Kreis, Giessen Region, Hesse, Germany
03587270017855758086931.jpg
Dufrénite

Rotläufchen Mine, Waldgirmes, Lahnau, Lahn-Dill-Kreis, Giessen Region, Hesse, Germany
06515470017855758081029.jpg
Dufrénite, etc.

Rotläufchen Mine, Waldgirmes, Lahnau, Lahn-Dill-Kreis, Giessen Region, Hesse, Germany
02671000017679684322132.jpg
Dufrénite

Rotläufchen Mine, Waldgirmes, Lahnau, Lahn-Dill-Kreis, Giessen Region, Hesse, Germany
09756270017364299463561.jpg
Dufrénite, etc.

Rotläufchen Mine, Waldgirmes, Lahnau, Lahn-Dill-Kreis, Giessen Region, Hesse, Germany
02692650017272021339302.jpg
Dufrénite

Rotläufchen Mine, Waldgirmes, Lahnau, Lahn-Dill-Kreis, Giessen Region, Hesse, Germany
03199870017272021353072.jpg
Dufrénite, etc.

Rotläufchen Mine, Waldgirmes, Lahnau, Lahn-Dill-Kreis, Giessen Region, Hesse, Germany
03725300017825740415543.jpg
Dufrénite

Rotläufchen Mine, Waldgirmes, Lahnau, Lahn-Dill-Kreis, Giessen Region, Hesse, Germany
Locality type:Mine
Classification
Species:Dufrénite
Formula:Ca0.5Fe2+Fe53+(PO4)4(OH)6 · 2H2O
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Beraunite2
Cacoxenite1
Rockbridgeite1
Goethite1
Kidwellite1
Data
Mineral Data:Click here to view Dufrénite data
Locality Data:Click here to view Rotläufchen Mine, Waldgirmes, Lahnau, Lahn-Dill-Kreis, Giessen Region, Hesse, Germany
Photo GalleryView Gallery (8 photos)
Data Identifiers
Mindat Occurrence Record ID:113386
Long-form Identifier:1:3:113386:8
GUID (UUID V4):0
Nearest other occurrences of Dufrénite
23.6km (14.7 miles) ⓘMark Mine, Weinbach, Limburg-Weilburg, Giessen Region, Hesse, Germany
46.5km (28.9 miles) ⓘEisenzecher Zug mine, Eiserfeld, Siegen, Siegen-Wittgenstein, Arnsberg, North Rhine-Westphalia, Germany
47.8km (29.7 miles) ⓘHollertszug Mine (Hollerter Zug Mine), Dermbach, Herdorf, Daaden-Herdorf, Altenkirchen, Rhineland-Palatinate, Germany
49.2km (30.5 miles) ⓘWernsberger Erbstollen Mine (Wernsberg Mine), Brachbach, Kirchen (Sieg), Altenkirchen, Rhineland-Palatinate, Germany
73.1km (45.4 miles) ⓘLouise Mine, Bürdenbach, Altenkirchen-Flammersfeld, Altenkirchen, Rhineland-Palatinate, Germany
91.6km (56.9 miles) ⓘVirneberg Mine, Rheinbreitbach, Unkel, Neuwied, Rhineland-Palatinate, Germany
93.6km (58.1 miles) ⓘDavid Mine (Christiansglück Mine), Warstein, Soest, Arnsberg, North Rhine-Westphalia, Germany
References
Dana 6: 797, 823
Dana 7:II:874, 960.
 
and/or  
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