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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Rock Crystal from
Werlau, Sankt Goar, Hunsrück-Mittelrhein, Rhein-Hunsrück-Kreis, Rhineland-Palatinate, Germany


Locality type:Suburb
Classification
Species:Quartz var: Rock Crystal
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Rock Crystal data
Locality Data:Click here to view Werlau, Sankt Goar, Hunsrück-Mittelrhein, Rhein-Hunsrück-Kreis, Rhineland-Palatinate, Germany
Data Identifiers
Mindat Occurrence Record ID:486524
Long-form Identifier:1:3:486524:7
GUID (UUID V4):0
Nearest other occurrences of Rock Crystal
1.9km (1.2 miles) ⓘGute Hoffnung Mine (Prinzenstein Mine), Sankt Goar, Hunsrück-Mittelrhein, Rhein-Hunsrück-Kreis, Rhineland-Palatinate, Germany
3.3km (2.0 miles) ⓘForstbach valley, Sankt Goarshausen, Loreley, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany
3.5km (2.2 miles) ⓘLoreley rock, Sankt Goarshausen, Loreley, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany
9.6km (6.0 miles) ⓘSlate mine, Kaub, Loreley, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany
11.1km (6.9 miles) ⓘEselspfad, Sauerthal, Loreley, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany
12.1km (7.5 miles) ⓘBeck quarry, Miehlen, Nastätten, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany
16.3km (10.1 miles) ⓘWisper valley, Lorch am Rhein, Rheingau-Taunus-Kreis, Darmstadt, Hesse, Germany
18.4km (11.4 miles) ⓘQuartzite quarry, Trechtingshausen, Rhein-Nahe, Mainz-Bingen, Rhineland-Palatinate, Germany
18.7km (11.6 miles) ⓘJammertal, Attenhausen, Bad Ems-Nassau, Rhein-Lahn-Kreis, Rhineland-Palatinate, Germany
24.1km (15.0 miles) ⓘLimestone quarries, Stromberg, Langenlonsheim-Stromberg, Bad Kreuznach, Rhineland-Palatinate, Germany
References
Poser, C., and Lutz, H. (2004): Mineralien aus Rheinland-Pfalz.Landessammlung für Naturkunde Rheinland-Pfalz (Mainz)
 
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