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| Description | |
|---|---|
| Quality of samples: | not specified / average specimens |
| Confirmation | |
| Validity: | Believed Valid |
| References | |
| References: | Andersen, O. (1931): Feltspat II. Forekomster i fylkene Buskerud og Telemark, i flere herreder i Aust-Agder og i Hidra i Vest-Agder. Norges Geologiske Undersøkelse 128b,1-109 [p.76] |
| Data | |
| Mineral Data: | Click here to view Oligoclase data |
| Locality Data: | Click here to view Hella 1 Feldspar Quarry, Helle, Arendal, Aust-Agder, Norway |
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