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Opal from
Pechgraben, Bernstein, Oberwart District, Burgenland, Austria

Classification
Species:Opal
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
References
References:R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Pechgraben, Bernstein, Oberwart District, Burgenland, Austria
Photo GalleryView Gallery (3 photos)
Nearest other occurrences of Opal
18.7km (11.6 miles) Basalt quarry, Pauliberg, Kobersdorf, Oberpullendorf District, Burgenland, Austria
26.6km (16.6 miles) Holler quarry, Badersdorf, Oberwart District, Burgenland, Austria
26.9km (16.7 miles) Unnamed quarry, Badersdorf, Oberwart District, Burgenland, Austria
27.9km (17.4 miles) Opal occurrence, Kohfidisch, Oberwart District, Burgenland, Austria
28.8km (17.9 miles) Csaterberge (Csater-Berge), Kohfidisch, Oberwart District, Burgenland, Austria
35.6km (22.1 miles) Kaltenegg, Southern District, Prinzkogel mines, Prinzkogel (Prinzenkogel), Rettenegg, Weiz District, Styria, Austria
60.2km (37.4 miles) Steinberg, Mühldorf bei Feldbach, Feldbach, Südoststeiermark District, Styria, Austria
65.1km (40.4 miles) Schlarbaum quarry, Klause, Bad Gleichenberg, Südoststeiermark District, Styria, Austria
69.9km (43.5 miles) Stradner Kogel, Wilhelmsdorf, Bad Gleichenberg, Südoststeiermark District, Styria, Austria
71.4km (44.3 miles) S6 motorway tunnel (Tanzenberg tunnel), Tanzenberg, Kapfenberg, Bruck-Mürzzuschlag District, Styria, Austria
 
Mineral and/or Locality  
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