Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Actinolite from
Grua Tunnel, Grua, Lunner, Akershus, Norway


Locality type:Tunnel
Classification
Species:Actinolite
Formula:◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Formation:Secondary
Comments:Acicular microcrystals in Alpine cleft with epidote, chabazite, magnetite and pyrite.
Habit:acicular
Colour:dark green
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Chabazite1
Epidote1
Data
Mineral Data:Click here to view Actinolite data
Locality Data:Click here to view Grua Tunnel, Grua, Lunner, Akershus, Norway
Data Identifiers
Mindat Occurrence Record ID:1652393
Long-form Identifier:1:3:1652393:7
GUID (UUID V4):0
Nearest other occurrences of Actinolite
28.0km (17.4 miles) ⓘSandermosen, Maridalen, Oslomarka, Oslo, Norway
31.0km (19.3 miles) ⓘBjønndalen Quarry, Nittedal, Akershus, Norway
33.3km (20.7 miles) ⓘGjelleråsen, Nittedal, Akershus, Norway
33.4km (20.7 miles) ⓘHuken Quarry, Grorud, Oslo, Norway
33.6km (20.9 miles) ⓘKristiansen Quarry (Bånkall Quarry), Bånkall, Grorud, Oslo, Norway
33.8km (21.0 miles) ⓘListua Quarry, Bærum (Baerum), Akershus, Norway
35.4km (22.0 miles) ⓘTotenåsen, Østre Toten, Innlandet, Norway
55.0km (34.2 miles) ⓘSkuterud Mines, Modum West, Modum, Buskerud, Norway
58.4km (36.3 miles) ⓘHaugfoss, Modum, Buskerud, Norway
64.7km (40.2 miles) ⓘKonnerudgata Quarry, Gulskogen, Drammen, Buskerud, Norway
References
Former Lennart Närlund collectionIdentified by Harold Moritz: Visual Identification
 
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