Vote for your favorite mineral in #MinCup26! - Hafnon vs. Putnisite
It's a pair of tiny minerals of unusual chemistry as orange Hafnon battles with purple Putnisite.
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Amphibole Supergroup from
Erdmann Mine, Engelstadvangen, Elsjø Mining Field, Nannestad, Akershus, Norway


Locality type:Mine
Classification
Species:'Amphibole Supergroup' (not an IMA approved species)
Formula:AB2C5(T8O22)W2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Amphibole Supergroup data
Locality Data:Click here to view Erdmann Mine, Engelstadvangen, Elsjø Mining Field, Nannestad, Akershus, Norway
Data Identifiers
Mindat Occurrence Record ID:1102866
Long-form Identifier:1:3:1102866:8
GUID (UUID V4):0
Nearest other occurrences of Amphibole Supergroup
8.6km (5.3 miles) ⓘZone 2, RV 4 roadcuts, Harestua, Lunner, Akershus, Norway
11.9km (7.4 miles) ⓘMidtmoen, Øståsen, Lunner, Akershus, Norway
13.0km (8.1 miles) ⓘNyseter Zinc Mines, Grua mining district, Lunner, Akershus, Norway
13.8km (8.5 miles) ⓘKalkovnen, Østhagan Nature Reserve, Grua mining district, Lunner, Akershus, Norway
13.8km (8.6 miles) ⓘGrua Railway Tunnel, Grua, Lunner, Akershus, Norway
15.3km (9.5 miles) ⓘLiggeren, Oslomarka, Oslo, Norway
15.7km (9.8 miles) ⓘSkjerpemyr Mine, Grua mining district, Lunner, Akershus, Norway
20.0km (12.4 miles) ⓘRambydalen Quarry, Ullensaker, Akershus, Norway
25.1km (15.6 miles) ⓘÅrvollåsen Natural Monument, Oslomarka, Oslo, Norway
28.7km (17.8 miles) ⓘListua Quarry, Bærum (Baerum), Akershus, Norway
References
Lindahl, Ingvar (1979) Geologiske og geofysiske undersøkelser i Elsjøfeltet Nannestad, Nittedal, Akershus [Geological and geophysical investigations in the Elsjø field Nannestad, Nittedal, Akershus]. Bergvesenet rapport BV374
 
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