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
Gralheira Mine, Alfarela de Jales, Vila Pouca de Aguiar, Vila Real, 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 Gralheira Mine, Alfarela de Jales, Vila Pouca de Aguiar, Vila Real, Portugal
Data Identifiers
Mindat Occurrence Record ID:816296
Long-form Identifier:1:3:816296:0
GUID (UUID V4):0
Nearest other occurrences of Quartz
2.2km (1.3 miles) ⓘJales Mines (Jales Mining Field), Alfarela de Jales, Vila Pouca de Aguiar, Vila Real, Portugal
4.0km (2.5 miles) ⓘTresminas Mines, Tresminas, Vila Pouca de Aguiar, Vila Real, Portugal
4.6km (2.9 miles) ⓘJales Mines (Jales Mining Field), Vreia de Jales, Vila Pouca de Aguiar, Vila Real, Portugal
4.6km (2.9 miles) ⓘJales Mines (Jales Mining Field), Tresminas, Vila Pouca de Aguiar, Vila Real, Portugal
5.1km (3.2 miles) ⓘBoucinha do Sargaço Mine, Vreia de Jales, Vila Pouca de Aguiar, Vila Real, Portugal
5.9km (3.7 miles) ⓘSódria Mine, Bornes de Aguiar, Vila Pouca de Aguiar, Vila Real, Portugal
8.1km (5.0 miles) ⓘFraga da Raposa Mine, Fiolhoso, Murça, Vila Real, Portugal
10.4km (6.5 miles) ⓘMonte ou Serra de São Domingos Mine, Murça, Murça, Vila Real, Portugal
11.5km (7.2 miles) ⓘCabeço and Vale do Mogo Mine, Vila Verde, Alijó, Vila Real, Portugal
11.9km (7.4 miles) ⓘVale de Campo Mine, Carrazedo de Montenegro e Curros, Valpaços, Vila Real, Portugal
References
Neiva, A. M. R. (1994): Gold-​quartz veins at Gralheira, northern Portugal: mineralogical and geochemical characteristics. Transactions of the Institution of Mining and Metallurgy, Section B: Applied Earth Science 103, B188-B196.
Wahl-Clerici, R., Wiechowski, A., Helfert, M. & Ramminger, B. (2012): Die Golderzaufbereitung im römischen Bergwerksbezirk von Três Minas und Campo de Jales in Nordportugal. Der Anschnitt 64, 109-118.
Martins, S. A. B. (2018). Mineralizações auríferas de Jales, Gralheira e Raiz do Monte: estudo mineralógico e paragenético. o Mestrado em Geologia da Faculdade de Ciências da Universidade do Porto
 
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