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
Olgas Mine, Castelo Branco, Mogadouro, Bragança, Portugal


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Linarite2
Cerussite1
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Olgas Mine, Castelo Branco, Mogadouro, Bragança, Portugal
Data Identifiers
Mindat Occurrence Record ID:855720
Long-form Identifier:1:3:855720:9
GUID (UUID V4):0
Nearest other occurrences of Quartz
5.5km (3.4 miles) ⓘVinha da Mina Mine, Mogadouro， Valverde， Vale de Porco e Vilar de Rei, Mogadouro, Bragança, Portugal
5.7km (3.5 miles) ⓘFonte Santa Mine, Lagoaça e Fornos, Freixo de Espada à Cinta, Bragança, Portugal
6.2km (3.9 miles) ⓘCabeço da Roda Mine, Lagoaça e Fornos, Freixo de Espada à Cinta, Bragança, Portugal
8.4km (5.2 miles) ⓘTerra da Mina Mine, Castelo Branco, Mogadouro, Bragança, Portugal
9.2km (5.7 miles) ⓘCabecinha do Prado MIne, Vilar Chão, Alfândega da Fé, Bragança, Portugal
9.5km (5.9 miles) ⓘPrado dos Reis Mine, Mogadouro， Valverde， Vale de Porco e Vilar de Rei, Mogadouro, Bragança, Portugal
13.0km (8.1 miles) ⓘCovas Mine, Ferradosa e Sendim da Serra, Alfândega da Fé, Bragança, Portugal
16.4km (10.2 miles) ⓘPissarrão Mine, Carviçais, Torre de Moncorvo, Bragança, Portugal
17.4km (10.8 miles) ⓘCabeço da Mua Mine, Felgar e Souto da Velha, Torre de Moncorvo, Bragança, Portugal
18.3km (11.4 miles) ⓘVale da Madre Mine, Freixo de Espada à Cinta e Mazouco, Freixo de Espada à Cinta, Bragança, Portugal
References
LNEG - Siorminp database information
Marques de Sá, C.; Noronha, F.; Cardellach, E.; Bobos, I. (2019) Fluid inclusion and (S, C, O, Pb) isotope study of Pb-Zn-(Cu-Ag) hydrothermal veins from Central and Northern Portugal – Metallogenic implications. Ore Geology Reviews, 112. doi:10.1016/j.oregeorev.2019.103043
 
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