Erdmannite (of Berlin)
A material that is NOT an approved mineral species
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Colour:
Dark brown
Name:
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.
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.
Unique Identifiers
Mindat ID:
39980
Long-form identifier:
mindat:1:1:39980:3
GUID
(UUID V4):
(UUID V4):
283fde31-e806-476e-8a1f-63e46b345c0c
Physical Properties of Erdmannite (of Berlin)
Colour:
Dark brown
Synonyms of Erdmannite (of Berlin)
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Erdmannite (of Berlin)
mindat.org URL:
https://www.mindat.org/min-39980.html
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References for Erdmannite (of Berlin)
Reference List:
Localities for Erdmannite (of Berlin)
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The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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).
All localities listed without proper references should be considered as questionable.
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