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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Heulandite Subgroup from
Eiksund Tunnel, Volda, Møre og Romsdal, Norway


Locality type:Tunnel
Classification
Species:'Heulandite Subgroup' (not an IMA approved species)
Formula:(Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Heulandite Subgroup data
Locality Data:Click here to view Eiksund Tunnel, Volda, Møre og Romsdal, Norway
Data Identifiers
Mindat Occurrence Record ID:717136
Long-form Identifier:1:3:717136:9
GUID (UUID V4):0
Nearest other occurrences of Heulandite Subgroup
91.3km (56.7 miles) ⓘFjærland Tunnel, Sogndal, Vestland, Norway
References
Nordrum, Fred Steinar (2007) Nyfunn av mineraler i Norge 2006-2007 [New finds of minerals in Norway 2006-2007]. Norsk Bergverksmuseum Skrift, 35. 61-66
 
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