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
Teixo Mines, Teixeira, Teixeira e Teixeiró, 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 Teixo Mines, Teixeira, Teixeira e Teixeiró, Baião, Porto, Portugal
Data Identifiers
Mindat Occurrence Record ID:917853
Long-form Identifier:1:3:917853:3
GUID (UUID V4):0
Nearest other occurrences of Tantalite
7.3km (4.5 miles) ⓘGestaçô Mines, Gestaçô, Baião, Porto, Portugal
12.3km (7.6 miles) ⓘVieiros Mining Field, Canadelo, Olo e Canadelo, Amarante, Porto, Portugal
12.9km (8.0 miles) ⓘVieiros Mines, Rebordelo, Amarante, Porto, Portugal
41.1km (25.5 miles) ⓘRibeira de Pena Mining Field, Santa Marinha, Ribeira de Pena, Vila Real, Portugal
41.5km (25.8 miles) ⓘMonte da Alvorada Mine, Salto, Montalegre, Vila Real, Portugal
43.9km (27.3 miles) ⓘLousas aplite-pegmatite, Dornelas, Boticas, Vila Real, Portugal
51.1km (31.7 miles) ⓘAssunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal
53.1km (33.0 miles) ⓘPreguiça Mine, Ferreira de Aves, Sátão, Viseu, Portugal
57.7km (35.9 miles) ⓘBessa Mining Field, Morgade, Montalegre, Vila Real, Portugal
61.4km (38.1 miles) ⓘVenturinha, Sezures, Penalva do Castelo, Viseu, Portugal
References
LNEG - Laboratório Nacional de Energia e Geologia, Siorminp ID 518SnTa
 
and/or  
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