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
Lugar do Seixo Mine, Galafura e Covelinhas, Peso da Régua, Vila Real, Portugal


Locality type:Mine
Classification
Species:Chalcocite
Formula:Cu2S
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcocite data
Locality Data:Click here to view Lugar do Seixo Mine, Galafura e Covelinhas, Peso da Régua, Vila Real, Portugal
Data Identifiers
Mindat Occurrence Record ID:854177
Long-form Identifier:1:3:854177:2
GUID (UUID V4):0
Nearest other occurrences of Chalcocite
33.1km (20.5 miles) ⓘMonte de Entre-Portelas Mine (S. João Mine; Adoria Mine), Cerva e Limões, Ribeira de Pena, Vila Real, Portugal
42.2km (26.2 miles) ⓘCorguinha Mine (Prazos Mine), Torre de Terrenho， Terrenho e Sebadelhe da Serra, Trancoso, Guarda, Portugal
42.3km (26.3 miles) ⓘFonte Velha Mine, Torre de Terrenho， Terrenho e Sebadelhe da Serra, Trancoso, Guarda, Portugal
45.7km (28.4 miles) ⓘNespereiro Mine, Palhais, Trancoso, Guarda, Portugal
47.0km (29.2 miles) ⓘSalão Mine, Rio de Mel, Trancoso, Guarda, Portugal
57.1km (35.5 miles) ⓘVinhaça Mine, Fiães, Trancoso, Guarda, Portugal
58.2km (36.2 miles) ⓘBorralha Mines, Salto, Montalegre, Vila Real, Portugal
68.0km (42.3 miles) ⓘFeli deposit, La Fregeneda, Salamanca, Castile and Leon, Spain
69.0km (42.9 miles) ⓘAssinada Mine, U.F Fail e Vila Chã de Sá, Viseu, Viseu, Portugal
69.7km (43.3 miles) ⓘVale do Salgueiro Mine, U.F Fail e Vila Chã de Sá, Viseu, Viseu, Portugal
References
LNEG database
 
and/or  
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