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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Biotite from
Toal della Ricoletta (Toal della Fassaite), San Giovanni di Fassa, Trento Province, Trentino-Alto Adige/Südtirol, Italy


Locality type:Slope
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Toal della Ricoletta (Toal della Fassaite), San Giovanni di Fassa, Trento Province, Trentino-Alto Adige/Südtirol, Italy
Data Identifiers
Mindat Occurrence Record ID:401532
Long-form Identifier:1:3:401532:1
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.9km (0.6 miles) ⓘSelle Lake area, San Giovanni di Fassa, Trento Province, Trentino-Alto Adige/Südtirol, Italy
2.1km (1.3 miles) ⓘPale Rabbiose, Moena, Trento Province, Trentino-Alto Adige/Südtirol, Italy
8.6km (5.4 miles) ⓘCosta di Viezzena, Predazzo, Trento Province, Trentino-Alto Adige/Südtirol, Italy
27.7km (17.2 miles) ⓘSagrón Mine, Sagron Mis, Trento Province, Trentino-Alto Adige/Südtirol, Italy
27.7km (17.2 miles) ⓘVallalta Mine, Gosaldo, Belluno Province, Veneto, Italy
49.2km (30.6 miles) ⓘCorvara Mine (Rabenstein Mine), Pénnes Valley (Pensertal), Sarentino Valley (Sarn valley), South Tyrol, Trentino-Alto Adige/Südtirol, Italy
50.0km (31.1 miles) ⓘQuadrate, Fornace, Trento Province, Trentino-Alto Adige/Südtirol, Italy
50.2km (31.2 miles) ⓘLe Cave (Grasstein), Franzensfeste (Fortezza), Wipptal (Alta Vall'Isarco), South Tyrol, Trentino-Alto Adige/Südtirol, Italy
60.8km (37.8 miles) ⓘSettolo Basso, Bigolino, Valdobbiadene, Treviso Province, Veneto, Italy
65.7km (40.8 miles) ⓘCastelletto di Rotzo, Rotzo, Vicenza Province, Veneto, Italy
References
De Michele, V. (1974) Guida mineralogica d'Italia. Istituto Geografico De Agostini.
 
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