Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Malachite from
Byrud Emerald Mines, Minnesund, Eidsvoll, Akershus, Norway


Locality type:Mine
Classification
Species:Malachite
Formula:Cu2(CO3)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Malachite data
Locality Data:Click here to view Byrud Emerald Mines, Minnesund, Eidsvoll, Akershus, Norway
Data Identifiers
Mindat Occurrence Record ID:670674
Long-form Identifier:1:3:670674:6
GUID (UUID V4):0
Nearest other occurrences of Malachite
31.5km (19.6 miles) ⓘVardeåsen Pb prospect, Nannestad, Akershus, Norway
32.7km (20.3 miles) ⓘErdmann Mine, Engelstadvangen, Elsjø Mining Field, Nannestad, Akershus, Norway
32.9km (20.4 miles) ⓘNyseter Zinc Mines, Grua mining district, Lunner, Akershus, Norway
34.0km (21.1 miles) ⓘRambydalen Quarry, Ullensaker, Akershus, Norway
35.3km (21.9 miles) ⓘMutta Mine, Grua mining district, Lunner, Akershus, Norway
36.1km (22.4 miles) ⓘSkjerpemyr Mine, Grua mining district, Lunner, Akershus, Norway
36.6km (22.7 miles) ⓘLykkens Prøve, Grua mining district, Lunner, Akershus, Norway
49.1km (30.5 miles) ⓘNygard Quarry, Hunndalen, Gjøvik, Innlandet, Norway
49.4km (30.7 miles) ⓘBjønndalen Quarry, Nittedal, Akershus, Norway
52.9km (32.9 miles) ⓘRomsås Mine, Oslomarka, Oslo, Norway
References
EDS Naturhistorisk Museum, Oslo 2010
Kvamsdal, Lars O.; Friis, Henrik; Müller, Axel (2021) Byrud gruver; mer enn smaragder [Byrud mines; more than emeralds]. Norsk Mineralsymposium 2021, p.21-36.
 
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