| | Description | |
| Quality of samples: | not specified / average specimens | | Confirmation | |
| Validity: | Believed Valid | | References | |
| References: | Nordrum, F.S., Raade, G. (2006): The emerald deposit at Byrud, Eidsvoll, S. Norway. Bergverksmuseets skrifter nr. 30, 9-16 | | Data | |
| Mineral Data: | Click here to view Montmorillonite data | | Locality Data: | Click here to view Byrud Emerald Mine, Minnesund, Eidsvoll (Eidsvold), Akershus, Norway |
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