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Studen kladenets, Krumovgrad Obshtina, Kardzhali Oblast (Kurdzhali; Kărdžali; Kurdjali), Bulgaria
Detailed Mineral List:
| Opal | ||
| Formula: | SiO2 · nH2O | |
| Reference: | Anton Ivanov field observation | |
| Quartz var: Agate | ||
| Formula: | SiO2 | |
| Reference: | Anton Ivanov field observation | |
2 entries listed. 1 valid mineral.
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New Locality Added: Attu, Pargas (Parainen), Southwestern Finland Region, FinlandFrom Ilkka Mikkola, 24th May 2013 06:15:27















