Tantalite from
Assunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal
| Locality type: | Mine | |
| Classification | ||
|---|---|---|
| Species: | 'Tantalite' (not an IMA approved species) | |
| Formula: | (Mn,Fe)(Ta,Nb)2O6 | |
| Comments: | A better explanation of the occurrence of this species is needed. Was the mineral listed simply as columbite-tantalite or were there chemical analyses and x-ray patterns reported? Members of the tantalite series which have Fe>Mn are rare and usually crystallize with the tapiolite structure not the columbite structure. Tantalite is listed here because several people have requested it being an available choice, but without data, it's listing here is for convenience only. | |
| Confirmation | ||
| Validity: | Believed Valid | |
| Associated Minerals Based on Photo Data: | ||
| Beryl | 1 | |
| Data | ||
| Mineral Data: | Click here to view Tantalite data | |
| Locality Data: | Click here to view Assunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal | |
| Photo Gallery | View Gallery (14 photos) | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 350670 | |
| Long-form Identifier: | 1:3:350670:7 | |
| GUID (UUID V4): | 0 | |
| Nearest other occurrences of Tantalite | ||
| 2.1km (1.3 miles) | ⓘPreguiça Mine, Ferreira de Aves, Sátão, Viseu, Portugal | |
| 12.2km (7.6 miles) | ⓘVenturinha, Sezures, Penalva do Castelo, Viseu, Portugal | |
| 15.6km (9.7 miles) | ⓘQuelhas do Velho Mine, U.F Antas e Matela, Penalva do Castelo, Viseu, Portugal | |
| 44.8km (27.9 miles) | ⓘGestaçô Mines, Gestaçô, Baião, Porto, Portugal | |
| 48.4km (30.1 miles) | ⓘVermilhas No. 1 Mine, U.F Cambra e Carvalhal de Vermilhas, Vouzela, Viseu, Portugal | |
| 49.2km (30.6 miles) | ⓘPortomé pegmatite, Vela, Guarda, Guarda, Portugal | |
| 51.1km (31.7 miles) | ⓘTeixo Mines, Teixeira, Teixeira e Teixeiró, Baião, Porto, Portugal | |
| 55.0km (34.2 miles) | ⓘTorre Romana Mine, Belmonte e Colmeal da Torre, Belmonte, Castelo Branco, Portugal | |
| 55.7km (34.6 miles) | ⓘPorto Mine, Adão, Guarda, Guarda, Portugal | |
| 56.7km (35.2 miles) | ⓘQuinta Cimeira Mine, Maçainhas, Belmonte, Castelo Branco, Portugal | |
| References | ||
Assunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal