| Locality type: | Quarry |
| Classification |
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| Species: | Quartz var: Chalcedony |
| Formula: | SiO2 |
| Confirmation |
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| Validity: | Believed Valid |
| References |
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| References: | Lapis, 12 (11), 25-28+42. |
| Data |
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| Mineral Data: | Click here to view Chalcedony data |
| Locality Data: | Click here to view Grasyma quarry, Großer Waldstein, Zell im Fichtelgebirge, Hof District, Upper Franconia, Bavaria, Germany |
| Nearest other occurrences of Chalcedony |
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| 4.0km (2.5 miles) | | ⓘHaidberg Quarry, Zell im Fichtelgebirge, Hof District, Upper Franconia, Bavaria, Germany |
| 12.4km (7.7 miles) | | ⓘZufurt quarry (Zufuhrt quarry), Tröstau, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany |
| 12.9km (8.0 miles) | | ⓘAcherwiese, Schönbrunn, Wunsiedel, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany |
| 16.2km (10.1 miles) | | ⓘHeß quarry, Wurlitz, Rehau, Hof District, Upper Franconia, Bavaria, Germany |
| 16.7km (10.4 miles) | | ⓘJohannes Mine, Göpfersgrün, Wunsiedel, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany |
| 19.3km (12.0 miles) | | ⓘPeterlesstein, Kupferberg, Kulmbach District, Upper Franconia, Bavaria, Germany |
| 20.6km (12.8 miles) | | ⓘStemmas, Thiersheim, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany |
| 25.8km (16.0 miles) | | ⓘSiebenhitz, Köditz, Hof District, Upper Franconia, Bavaria, Germany |
| 33.3km (20.7 miles) | | ⓘKornberg, Schadenreuth, Erbendorf, Tirschenreuth District, Upper Palatinate, Bavaria, Germany |
| 37.7km (23.4 miles) | | ⓘVogtendorf, Kronach City, Kronach District, Upper Franconia, Bavaria, Germany |
