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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Jarosite from
Grund mine, Bergstadt Bad Grund, Bad Grund, Göttingen District, Lower Saxony, Germany


Locality type:Mine
Classification
Species:Jarosite
Formula:KFe33+(SO4)2(OH)6
Comments:Associated with sky blue, transparent, curved "ram's horn"-like chalcanthite aggregates up to 2mm directly on corroded chalcopyrite
Habit:earthy pustules
Colour:light beige
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Jarosite data
Locality Data:Click here to view Grund mine, Bergstadt Bad Grund, Bad Grund, Göttingen District, Lower Saxony, Germany
Data Identifiers
Mindat Occurrence Record ID:30614
Long-form Identifier:1:3:30614:4
GUID (UUID V4):0
Nearest other occurrences of Jarosite
13.2km (8.2 miles) ⓘSilberbach slag locality, Oberschulenberg, Clausthal-Zellerfeld, Goslar District, Lower Saxony, Germany
16.5km (10.2 miles) ⓘRammelsberg Mine, Rammelsberg, Goslar, Goslar District, Lower Saxony, Germany
21.1km (13.1 miles) ⓘFrische Lutter vein (incl. Lutter adit; South Rothäuser adit; North Rothäuser adit), Bad Lauterberg, Göttingen District, Lower Saxony, Germany
22.4km (13.9 miles) ⓘCatharina Neufang Mine, St Andreasberg, Braunlage, Goslar District, Lower Saxony, Germany
22.9km (14.2 miles) ⓘGabbro Quarry, Radau valley, Bad Harzburg, Goslar District, Lower Saxony, Germany
34.3km (21.3 miles) ⓘSt Georg Mine (Goslar'sche Gleie), Hasserode, Wernigerode, Harz, Saxony-Anhalt, Germany
34.7km (21.6 miles) ⓘDas Aufgeklärte Glück Mine (Aufgeklärtes Glück Mine), Hasserode, Wernigerode, Harz, Saxony-Anhalt, Germany
87.4km (54.3 miles) ⓘEckardt smelter slag locality, Leimbach, Mansfeld, Mansfeld-Südharz, Saxony-Anhalt, Germany
90.2km (56.1 miles) ⓘGottesbelohnung smelter, Mansfeld, Mansfeld-Südharz, Saxony-Anhalt, Germany
90.4km (56.2 miles) ⓘLichtloch 26, Mansfeld, Mansfeld-Südharz, Saxony-Anhalt, Germany
References
Schnorrer-Köhler, G. (1988) Mineralogische Notizen IV. Der Aufschluss: 39: 153-168 (in German).
 
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