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Erdmannite (of Berlin)

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Dark brown
Found by H.M.T. Esmark and named after the Swedish geologist Axel Joakim Erdmann (1814-1869)
An inadequately described mineral probably related to melanocerite-(Ce). It was first described as a dark brown mineral from Stokkøya, Langesundsfjorden, Norway by Berlin (1853). An analysis made by Blomstrand indicated an alumosilicate of REE, Fe and Ca. Brøgger (1890) suggested that the mineral was a mixture of altered melanocerite with homilite.

Both Berlin (1853) and Brøgger (1890) also pointed out that many of the mineral specimens labelled erdmannite at the time in fact was altered zircon.

Michalson (1863) analysed an allanite-like mineral from Arøya, Langesundsfjorden. He suggested that it was related to the erdmannite analyzed by Blomstrand. This mineral was again referred to as michaelsonite in Dana (1868).
To further complicate the picture, Engström (1877) also analyzed a mineral he thought to be identical to erdmannite. See Erdmannite (of Engström and Des Cloizeaux & Damour) for further details.

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Physical Properties of Erdmannite (of Berlin)Hide

Dark brown

Synonyms of Erdmannite (of Berlin)Hide

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Erdmannite (of Berlin)Hide

Reference List:
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- Berlin, N. J. (1853): Neue Mineralien aus Norwegen. Zweiter Theil. 5. Tachyaphaltit. 6. Erdmannit. Annalen der Physik und Chemie. 88: 160-162
- Michalson, C.A. (1863): Analyser af svenska och norska mineralier. Öfversigt af Kongliga Vetenskaps-Akademiens Förhandlingar. 19 (1852): 505-515
- Dana, J.D. (1868): System of Mineralogy. 5th Edition. 827pp. John Wiley & Son, New York
- Brøgger, W.C. (1890): Die Mineralien der Syenitpegmatitgänge der südnorwegischen Augit-und Nephelinsyenite. Zeitschrift für Kristallographie und Mineralogie. 16. 663 pp + 28 plates
- Raade, G. (1996): Minerals originally described from Norway. Including notes on type material. Bergverksmuseets Skrift nr 11, 104 pp. + plates 1-7
- Larsen, A. O. (ed.) (2010): The Langesundsfjord. History, geology, pegmatites, minerals. Bode Verlag Gmbh, Salzhemmendorf, Germany, 240 p.

Internet Links for Erdmannite (of Berlin)Hide

Localities for Erdmannite (of Berlin)Hide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Telemark
    • Porsgrunn
      • Langesundsfjorden
Weibye, P.C. (1848): Beiträge zur topographischen Mineralogie Norwegens. Archiv für Mineralogie, Geognosie, Bergbau und Hüttenkunde (C.J.B.Karsten und von Dechen) 22: 465-544 (p.531)
  • Vestfold
    • Larvik
      • Langesundsfjorden
Weibye, P.C. (1848): Beiträge zur topographischen Mineralogie Norwegens. Archiv für Mineralogie, Geognosie, Bergbau und Hüttenkunde (C.J.B.Karsten und von Dechen) 22: 465-544 (p.531)
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