| Locality type: | Village |
| Classification |
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| Species: | Opal |
| Formula: | SiO2 · nH2O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Opal data |
| Locality Data: | Click here to view Studen kladenets, Krumovgrad Municipality, Kardzhali Province, Bulgaria |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 679402 |
| Long-form Identifier: | 1:3:679402:6 |
| GUID (UUID V4): | 4c3c1cf7-642d-44bd-9962-1bbf3be3c439 |
| Nearest other occurrences of Opal |
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| 3.7km (2.3 miles) | ⓘPotochnitsa, Krumovgrad Municipality, Kardzhali Province, Bulgaria |
| 17.6km (10.9 miles) | ⓘZvezdel, Momchilgrad Municipality, Kardzhali Province, Bulgaria |
| 18.0km (11.2 miles) | ⓘDachiardite-K occurrence, Zvezdel, Momchilgrad Municipality, Kardzhali Province, Bulgaria |
| 18.6km (11.6 miles) | ⓘAda Tepe Au deposit, Krumovgrad Municipality, Kardzhali Province, Bulgaria |
| 18.9km (11.8 miles) | ⓘMadzharovo deposit, Madzharovo, Madzharovo Municipality, Haskovo Province, Bulgaria |
| 42.6km (26.5 miles) | ⓘTatarevo, Mineralni Bani Municipality, Haskovo Province, Bulgaria |
| 77.1km (47.9 miles) | ⓘMavrokoryfi prospect, Maroneia-Sapes, Rhodope, Eastern Macedonia and Thrace, Greece |
| 77.7km (48.3 miles) | ⓘPerama Hill deposit, Alexandroupoli, Evros, Eastern Macedonia and Thrace, Greece |
| 93.6km (58.2 miles) | ⓘKrumovo iron mine, Krumovo, Tundzha Municipality, Yambol Province, Bulgaria |
| References |
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| Reference Search (possible matching items) |
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 | | Journal (issue) | | gem aquamarine, black tourmaline, quartz, hyalite opal, fluorite, jeremejevite, and other minerals. More...Wegel Tena in Ethiopia’s Wollo Province is becoming a major producer of opal. Some specimens are very large...about 10–100 m long and about one meter thick, where opal occurs as irregular masses cementing clay gravels...observed, such as plant fossils within specimens and opal filling in root-like cavities. We also observed...and conglomerates. This evidence suggests that the opal formed during an episode of weathering in the Oligocene |  | | Journal (issue) | | G. (1987):Thenature of water in chalcedony and opal-C from Brazilian agate geodes. - Physics and Chemistry...401 -407. SCHMIDT, R. (2009): Die Achate von Studen Kladenets, Östliche Rhodopen/Bulgarien - ein Fundbericht |
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