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


08628370017699210836627.jpg
Quartz

Segura Mines, União das Freguesias de Zebreira e Segura, Idanha-a-Nova, Castelo Branco, Portugal
08628370017699210836627.jpg
Quartz

Segura Mines, União das Freguesias de Zebreira e Segura, Idanha-a-Nova, Castelo Branco, Portugal
00807810017697780526502.jpg
Quartz

Segura Mines, União das Freguesias de Zebreira e Segura, Idanha-a-Nova, Castelo Branco, Portugal
Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz 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:222778
Long-form Identifier:1:3:222778:8
GUID (UUID V4):0
Nearest other occurrences of Quartz
1.3km (0.8 miles) ⓘCerro Queimado, União das Freguesias de Zebreira e Segura, Idanha-a-Nova, Castelo Branco, Portugal
9.0km (5.6 miles) ⓘVale de Porcas Mine, União das Freguesias de Zebreira e Segura, Idanha-a-Nova, Castelo Branco, Portugal
9.4km (5.9 miles) ⓘSalvaterra do Extremo Mines, União das Freguesias de Monfortinho e Salvaterra de Extremo, Idanha-a-Nova, Castelo Branco, Portugal
11.0km (6.8 miles) ⓘLa Paloma Mine, Zarza la Mayor, Cáceres, Extremadura, Spain
22.7km (14.1 miles) ⓘVeigas do Erges Mines, União das Freguesias de Monfortinho e Salvaterra de Extremo, Idanha-a-Nova, Castelo Branco, Portugal
24.0km (14.9 miles) ⓘFonte Fria Mine, Rosmaninhal, Idanha-a-Nova, Castelo Branco, Portugal
26.0km (16.1 miles) ⓘGranite outcrop, União de Freguesias de Monsanto e Idanha-a-Velha, Idanha-a-Nova, Castelo Branco, Portugal
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
27.4km (17.1 miles) ⓘFonte do Casal Pelado Mine, União de Freguesias de Monsanto e Idanha-a-Velha, Idanha-a-Nova, Castelo Branco, Portugal
28.3km (17.6 miles) ⓘFonte Monsantela Mine, União de Freguesias de Monsanto e Idanha-a-Velha, Idanha-a-Nova, Castelo Branco, Portugal
References
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
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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