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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Tantalite from
Gestaçô Mines, Gestaçô, Baião, Porto, Portugal


Locality type:Mine
Classification
Species:'Tantalite' (not an IMA approved species)
Formula:(Mn,Fe)(Ta,Nb)2O6
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tantalite data
Locality Data:Click here to view Gestaçô Mines, Gestaçô, Baião, Porto, Portugal
Data Identifiers
Mindat Occurrence Record ID:917847
Long-form Identifier:1:3:917847:2
GUID (UUID V4):0
Nearest other occurrences of Tantalite
7.3km (4.5 miles) ⓘTeixo Mines, Teixeira, Teixeira e Teixeiró, Baião, Porto, Portugal
18.5km (11.5 miles) ⓘVieiros Mining Field, Canadelo, Olo e Canadelo, Amarante, Porto, Portugal
19.1km (11.9 miles) ⓘVieiros Mines, Rebordelo, Amarante, Porto, Portugal
44.8km (27.9 miles) ⓘAssunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal
46.8km (29.1 miles) ⓘPreguiça Mine, Ferreira de Aves, Sátão, Viseu, Portugal
48.3km (30.0 miles) ⓘRibeira de Pena Mining Field, Santa Marinha, Ribeira de Pena, Vila Real, Portugal
48.8km (30.3 miles) ⓘMonte da Alvorada Mine, Salto, Montalegre, Vila Real, Portugal
51.2km (31.8 miles) ⓘLousas aplite-pegmatite, Dornelas, Boticas, Vila Real, Portugal
54.7km (34.0 miles) ⓘVenturinha, Sezures, Penalva do Castelo, Viseu, Portugal
59.9km (37.2 miles) ⓘQuelhas do Velho Mine, U.F Antas e Matela, Penalva do Castelo, Viseu, Portugal
References
LNEG - Laboratório Nacional de Energia e Geologia, Siorminp ID 519SnTa
 
and/or  
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