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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Opal from
Siebenhitz, Köditz, Hof District, Upper Franconia, Bavaria, Germany


Locality type:Village
Classification
Species:Opal
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Siebenhitz, Köditz, Hof District, Upper Franconia, Bavaria, Germany
Data Identifiers
Mindat Occurrence Record ID:994002
Long-form Identifier:1:3:994002:4
GUID (UUID V4):0
Nearest other occurrences of Opal
15.5km (9.6 miles) ⓘHeß quarry, Wurlitz, Rehau, Hof District, Upper Franconia, Bavaria, Germany
24.4km (15.2 miles) ⓘEpprechtstein, Kirchenlamitz, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany
25.8km (16.0 miles) ⓘStreuspitz, Weißenstadter Forst-Nord, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany
28.1km (17.4 miles) ⓘHenneberg Quarry, Weitisberga, Wurzbach, Saale-Orla District, Thuringia, Germany
37.8km (23.5 miles) ⓘAcherwiese, Schönbrunn, Wunsiedel, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany
43.5km (27.0 miles) ⓘGranite quarries, Schurbach, Waldershof, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
44.9km (27.9 miles) ⓘLoitsch Quarry, Weida, Greiz District, Thuringia, Germany
48.9km (30.4 miles) ⓘWolframite mine, Pechtelsgrün, Lengenfeld, Vogtlandkreis, Saxony, Germany
51.3km (31.9 miles) ⓘZinster Kuppe, Kulmain, Tirschenreuth District, Upper Palatinate, Bavaria, Germany
59.7km (37.1 miles) ⓘFahsel quarry, Blauenthal, Eibenstock, Erzgebirgskreis, Saxony, Germany
References
Müller, F. (1984) Bayerns steinreiche Ecke. 2nd ed., Oberfränkische Verlagsanstalt und Druckerei GmbH, Hof, Bavaria, Germany.
 
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