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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Native Gold from
Gralheira Mine, Alfarela de Jales, Vila Pouca de Aguiar, Vila Real, Portugal


Locality type:Mine
Classification
Species:Native Gold
Formula:Au
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Native Gold 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:816289
Long-form Identifier:1:3:816289:2
GUID (UUID V4):0
Nearest other occurrences of Native Gold
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
29.5km (18.4 miles) ⓘFacuca - Vale de Cieiro and Lameiro do Bicheiro Mines, Pena， Quintã e Vila Cova, Vila Real, Vila Real, Portugal
30.2km (18.8 miles) ⓘPoço das Freitas deposit, Ardãos e Bobadela, Boticas, Vila Real, Portugal
30.9km (19.2 miles) ⓘLimarinho deposit, Ardãos e Bobadela, Boticas, Vila Real, Portugal
35.7km (22.2 miles) ⓘCabeço Figueiro Mine, Frechas, Mirandela, Bragança, Portugal
35.7km (22.2 miles) ⓘPedra Luz Mine, Frechas, Mirandela, Bragança, Portugal
35.9km (22.3 miles) ⓘLatadas Mines, São Salvador, Mirandela, Bragança, 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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