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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Amethyst from
Allzunah Castle, Herrmannsacker, Harztor, Nordhausen District, Thuringia, Germany


Classification
Species:Quartz var: Amethyst
Formula:SiO2
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Amethyst data
Locality Data:Click here to view Allzunah Castle, Herrmannsacker, Harztor, Nordhausen District, Thuringia, Germany
Data Identifiers
Mindat Occurrence Record ID:889282
Long-form Identifier:1:3:889282:9
GUID (UUID V4):0
Nearest other occurrences of Amethyst
7.5km (4.7 miles) ⓘNetzberg, Ilfeld, Harztor, Nordhausen District, Thuringia, Germany
25.8km (16.1 miles) ⓘQuarry at the Stern, Schierke, Wernigerode, Harz, Saxony-Anhalt, Germany
29.5km (18.3 miles) ⓘBraunwasser valley, Hippeln, Hasserode, Wernigerode, Harz, Saxony-Anhalt, Germany
30.7km (19.1 miles) ⓘSt Georg Mine (Goslar'sche Gleie), Hasserode, Wernigerode, Harz, Saxony-Anhalt, Germany
40.0km (24.9 miles) ⓘGabbro Quarry, Radau valley, Bad Harzburg, Goslar District, Lower Saxony, Germany
58.6km (36.4 miles) ⓘAmsdorf lignite open pit, Amsdorf, Seegebiet Mansfelder Land, Mansfeld-Südharz, Saxony-Anhalt, Germany
73.9km (45.9 miles) ⓘBlaue Kuppe, Eschwege, Werra-Meißner, Kassel Region, Hesse, Germany
78.4km (48.7 miles) ⓘMammendorf Quarry, Mammendorf, Eichenbarleben, Hohe Börde, Börde, Saxony-Anhalt, Germany
80.7km (50.2 miles) ⓘLengede-Broistedt mine, Lengede, Peine District, Lower Saxony, Germany
81.8km (50.8 miles) ⓘTabarz quarry, Bad Tabarz, Gotha District, Thuringia, Germany
References
Thomas Lühr Collection
 
and/or  
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