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Norway | |
| Rondeau, Benjamin, Fritsch, Emmanuel, Peucat, Jean-Jacques, Nordrum, Fred Steinar, Groat, Lee (2008) Characterization of Emeralds From a Historical Deposit: Byrud (Eidsvoll), Norway. Gems & Gemology, 44 (2) 108-122 doi:10.5741/gems.44.2.108 |
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Sweden | |
| Frank K. Mazdab specimen (Analysed with EMPA, see further info in caption photo id 840375 ) |
Hålsjöberg, Torsby, Värmland County, Sweden