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
La Canalita Sn-rich pegmatitic dykes, Peñaparda, Salamanca, Castile and Leon, Spain


Locality type:Deposit
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 La Canalita Sn-rich pegmatitic dykes, Peñaparda, Salamanca, Castile and Leon, Spain
Data Identifiers
Mindat Occurrence Record ID:1704258
Long-form Identifier:1:3:1704258:1
GUID (UUID V4):0
Nearest other occurrences of Tantalite
21.9km (13.6 miles) ⓘNave de Haver Mining Field, Nave de Haver, Almeida, Guarda, Portugal
43.4km (26.9 miles) ⓘPorto Mine, Adão, Guarda, Guarda, Portugal
50.4km (31.3 miles) ⓘQuinta Cimeira Mine, Maçainhas, Belmonte, Castelo Branco, Portugal
52.0km (32.3 miles) ⓘOlas Mine, Inguias, Belmonte, Castelo Branco, Portugal
53.5km (33.2 miles) ⓘPortomé pegmatite, Vela, Guarda, Guarda, Portugal
56.1km (34.9 miles) ⓘLei Velha Mine, Inguias, Belmonte, Castelo Branco, Portugal
56.3km (35.0 miles) ⓘTorre Romana Mine, Belmonte e Colmeal da Torre, Belmonte, Castelo Branco, Portugal
77.2km (48.0 miles) ⓘFeli deposit, La Fregeneda, Salamanca, Castile and Leon, Spain
81.7km (50.8 miles) ⓘArgimela Mine (Argemela Mine), Barco e Coutada, Covilhã, Castelo Branco, Portugal
85.2km (52.9 miles) ⓘQuelhas do Velho Mine, U.F Antas e Matela, Penalva do Castelo, Viseu, Portugal
References
Llorens, T., Moro, M. C. (2010) MICROLITE AND TANTALITE IN THE LCT GRANITIC PEGMATITES OF LA CANALITA, NAVASFRIAS Sn-W DISTRICT, SALAMANCA, SPAIN. The Canadian Mineralogist, 48 (2) 375-390 doi:10.3749/canmin.48.2.375
Losantos, Emma, Borrajo, Iñigo, Losada, Iván, Boixet, Lluís, Castelo Branco, José M., Tornos, Fernando (2025) Sn and W mineralisation in the Iberian Peninsula. Ore Geology Reviews, 179. 106542 doi:10.1016/j.oregeorev.2025.106542
 
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