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
Impensada Mine (Magnesitas de Rubián), Pacios, Vila de Mouros, Incio, Lugo, Galicia, Spain


Locality type:Mine
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 Impensada Mine (Magnesitas de Rubián), Pacios, Vila de Mouros, Incio, Lugo, Galicia, Spain
Data Identifiers
Mindat Occurrence Record ID:556295
Long-form Identifier:1:3:556295:4
GUID (UUID V4):0
Nearest other occurrences of Biotite
42.5km (26.4 miles) ⓘCurrito Mine, Cadafresnas, Corullón, Castile and Leon, Spain
54.8km (34.1 miles) ⓘValiña-Azúmara deposit, Castro de Rei, Lugo, Galicia, Spain
61.9km (38.5 miles) ⓘFontao mines, Silleda, Pontevedra, Galicia, Spain
66.7km (41.4 miles) ⓘForcarei Norte pegmatite field, Silleda, Pontevedra, Galicia, Spain
74.4km (46.2 miles) ⓘTouro Copper Project, Touro, A Coruña, Galicia, Spain
74.6km (46.3 miles) ⓘArienteiro deposit, Touro Copper Project, Touro, A Coruña, Galicia, Spain
88.1km (54.7 miles) ⓘPanceiros pegmatite, Campo Lameiro, Pontevedra, Galicia, Spain
94.2km (58.5 miles) ⓘA Franqueira, A Cañiza, Pontevedra, Galicia, Spain
References
Kilias, Stephanos P., Pozo, Manuel, Bustillo, Manuel, Stamatakis, Michael G., Calvo, José P. (2006) Origin of the Rubian carbonate-hosted magnesite deposit, Galicia, NW Spain: mineralogical, REE, fluid inclusion and isotope evidence. Mineralium Deposita, 41 (7) 713-733 doi:10.1007/s00126-006-0075-5
 
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