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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Wolframite Group from
Segura Mines (Segura mining field), União das Freguesias de Zebreira e Segura, Idanha-a-Nova, Castelo Branco, Portugal


Locality type:Mine
Classification
Species:'Wolframite Group' (not an IMA approved species)
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Wolframite Group data
Locality Data:Click here to view Segura Mines (Segura mining field), União das Freguesias de Zebreira e Segura, Idanha-a-Nova, Castelo Branco, Portugal
Data Identifiers
Mindat Occurrence Record ID:775850
Long-form Identifier:1:3:775850:8
GUID (UUID V4):0
Nearest other occurrences of Wolframite Group
27.3km (16.9 miles) ⓘTapada dos Carvalhos e Carvalhal Mines, União de Freguesias Idanha-a-Nova e Alcafozes, Idanha-a-Nova, Castelo Branco, Portugal
33.1km (20.6 miles) ⓘFonte da Oliveirenta Mine, Proença-a-Velha, Idanha-a-Nova, Castelo Branco, Portugal
34.6km (21.5 miles) ⓘMatas da Rainha Mines - Carvoeira e Senhora da Granja, Proença-a-Velha, Idanha-a-Nova, Castelo Branco, Portugal
35.1km (21.8 miles) ⓘRoncões and Fonte Serrana Mines, União de Freguesias de Escalos de Cima e Lousa, Castelo Branco, Castelo Branco, Portugal
41.1km (25.5 miles) ⓘCabeço do Seixo Mine, União de Freguesias de Pedrogão de S Pedro e Bemposta, Penamacor, Castelo Branco, Portugal
41.1km (25.5 miles) ⓘMata da Rainha Mine, União de Freguesias de Pedrogão de S Pedro e Bemposta, Penamacor, Castelo Branco, Portugal
41.1km (25.5 miles) ⓘEspadanal Mine, União de Freguesias de Pedrogão de S Pedro e Bemposta, Penamacor, Castelo Branco, Portugal
41.1km (25.5 miles) ⓘMonte Queimado Mine, União de Freguesias de Pedrogão de S Pedro e Bemposta, Penamacor, Castelo Branco, Portugal
41.1km (25.5 miles) ⓘCanchal da Terrinha Mine, Penamacor, Penamacor, Castelo Branco, Portugal
44.0km (27.3 miles) ⓘMonte das Areias e Vale da Torre Mine, Póvoa de Atalaia e Atalaia do Campo, Fundão, Castelo Branco, Portugal
References
LNEG/Siorminp databse
Neiva, A. M. R., Silva, M. M. V. G., Antunes, I. M. H. R., Ramos, J. M. F. (2001) Phosphate minerals of some granitic rocks and associated quartz veins from Northern and Central Portugal. Journal of the Czech Geological Society, 46 (1-2) 35-44
Antunes, Isabel Margarida Horta Ribeiro, Neiva, Ana Margarida Ribeiro, Ramos, João Manuel Farinha, Silva, Paulo Bravo, Silva, Maria Manuela Vinha Guerreiro, Corfu, Fernando (2013) Petrogenetic links between lepidolite-subtype aplite-pegmatite, aplite veins and associated granites at Segura (central Portugal) Geochemistry, 73 (3) 323-341 doi:10.1016/j.chemer.2012.12.003
Gaspar, Miguel, Grácio, Nuno, Salgueiro, Rute, Costa, Mafalda (2022) Trace Element Geochemistry of Alluvial TiO2 Polymorphs as a Proxy for Sn and W Deposits. Minerals, 12 (10) 1248 doi:10.3390/min12101248
 
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