| | Description | |
| Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Müller, H. D., Devillin von Mendig, ein Erstfund für die Vulkaneifel, Mineralien Welt 15/1, 26-27, 2004 | | Data | |
| Mineral Data: | Click here to view Devilline data | | Locality Data: | Click here to view Thelenberg Mt., Niedermendig, Mendig, Laach lake volcanic complex, Eifel Mts, Rhineland-Palatinate, Germany |
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