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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Dolomite from
Masa Valverde Mine (Valverde Mine), Beas, Huelva, Andalusia, Spain


Locality type:Mine
Classification
Species:Dolomite
Formula:CaMg(CO3)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Dolomite data
Locality Data:Click here to view Masa Valverde Mine (Valverde Mine), Beas, Huelva, Andalusia, Spain
Data Identifiers
Mindat Occurrence Record ID:1233646
Long-form Identifier:1:3:1233646:7
GUID (UUID V4):0
Nearest other occurrences of Dolomite
31.3km (19.5 miles) ⓘSalomón Mine, Rio Tinto Mines, Minas de Riotinto, Huelva, Andalusia, Spain
31.4km (19.5 miles) ⓘRio Tinto Mines, Minas de Riotinto, Huelva, Andalusia, Spain
56.7km (35.2 miles) ⓘCortes Pereira Mine, Alcoutim e Pereiro, Alcoutim, Faro, Portugal
65.3km (40.6 miles) ⓘHerdade de Vila Ruiva Mine, Sobral da Adiça, Moura, Beja, Portugal
66.3km (41.2 miles) ⓘPreguiça Mine, Sobral da Adiça, Moura, Beja, Portugal
66.3km (41.2 miles) ⓘAparis Mine, Barrancos, Barrancos, Beja, Portugal
67.4km (41.9 miles) ⓘPoço Moreno Mine, Mértola, Mértola, Beja, Portugal
67.5km (41.9 miles) ⓘOrdem Lírios Mine, Barrancos, Barrancos, Beja, Portugal
68.0km (42.3 miles) ⓘFonte de António Medeiro Mine, Mértola, Mértola, Beja, Portugal
68.3km (42.5 miles) ⓘDefesa das Mercês Mine, Barrancos, Barrancos, Beja, Portugal
References
Macías, M. T., de Almodóvar Sel, G. R., & Mesa, J. M. (1994). Datos de DRX de la aureola de alteración hidrotermal asociada a" Masa Valverde". Boletín de la Sociedad Española de Mineralogía, 17(1), 159-160.
Ruiz, Casilda; Arribas, Antonio (2002) Mineralogy and geochemistry of the Masa Valverde blind massive sulphide deposit, Iberian Pyrite Belt (Spain). Ore Geology Reviews, 19 (1). doi:10.1016/s0169-1368(01)00037-3
Arias, Mónica; Macías, José-Manuel; Cepedal, Antonia; Fuertes, Mercedes; Cortes, Fernando; Poblet, Josep; Arias, Daniel; Gumiel, Pablo; Martin-Izard, Agustin (2026) 3D Geological Model and Interpretation of Structural Evolution of the Masa Valverde VMS Deposit, Iberian Pyrite Belt (Spain). Minerals, 16 (8). doi:10.3390/min16080832
 
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