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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Amphibole Supergroup from
Kiihtelysvaara nepheline syenite, Joensuu, North Karelia, Finland


Locality type:Occurrence
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 Kiihtelysvaara nepheline syenite, Joensuu, North Karelia, Finland
Data Identifiers
Mindat Occurrence Record ID:1374190
Long-form Identifier:1:3:1374190:3
GUID (UUID V4):0
Nearest other occurrences of Amphibole Supergroup
88.0km (54.7 miles) ⓘPampalo Au deposit, Ilomantsi, North Karelia, Finland
References
Eskola, P., & SAHLSTEIN, T. (1930). On astrophyllite bearing nephelite syenite gneiss. Bull. Comm. Géol. Finlande, 92, 77-88.
 
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