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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Chalcocite from
Miguel Vacas Mine, Nossa Senhora da Conceição e São Bartolomeu, Vila Viçosa, Évora, Portugal


Locality type:Pit
Classification
Species:Chalcocite
Formula:Cu2S
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcocite data
Locality Data:Click here to view Miguel Vacas Mine, Nossa Senhora da Conceição e São Bartolomeu, Vila Viçosa, Évora, Portugal
Data Identifiers
Mindat Occurrence Record ID:882474
Long-form Identifier:1:3:882474:5
GUID (UUID V4):0
Nearest other occurrences of Chalcocite
8.9km (5.6 miles) ⓘBugalho Mine, Alandroal-Nossa Senhora da Conceição - São Brás dos Matos-Mina do Bugalho e Juromenha-Nossa Senhora do Loreto, Alandroal, Évora, Portugal
18.4km (11.5 miles) ⓘMostardeira Mine, Glória, Estremoz, Évora, Portugal
21.0km (13.1 miles) ⓘBarrinho Mine, Vila Fernando, Elvas, Portalegre, Portugal
37.1km (23.1 miles) ⓘLas Herrerías deposit, Alconchel, Badajoz, Extremadura, Spain
42.5km (26.4 miles) ⓘTinoca Mine, Nossa Senhora da Graça dos Degolados, Campo Maior, Portalegre, Portugal
68.4km (42.5 miles) ⓘAlcalainha Mine, Nossa Senhora da Tourega e Nossa Senhora de Guadalupe, Évora, Évora, Portugal
70.4km (43.8 miles) ⓘMalhada dos Barrinhos Mine, Barrancos, Barrancos, Beja, Portugal
73.0km (45.3 miles) ⓘDefesa das Mercês Mine, Barrancos, Barrancos, Beja, Portugal
73.8km (45.9 miles) ⓘOrdem Lírios Mine, Barrancos, Barrancos, Beja, Portugal
73.8km (45.9 miles) ⓘAparis Mine, Barrancos, Barrancos, Beja, Portugal
References
Gustavo Pereira Fernandes, Mineralizações de Cobre da Mina de Miguel Vacas: Caracterização Petrográfica e Geoquímica, Universidade de Lisboa, Faculdade de Ciências, Departamento de Geologia, 2012
 
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