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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Calcite from
São Pedro das Águias Mine, U.F Távora e Pereiro, Tabuaço, Viseu, Portugal


Locality type:Mine
Classification
Species:Calcite
Formula:CaCO3
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view São Pedro das Águias Mine, U.F Távora e Pereiro, Tabuaço, Viseu, Portugal
Data Identifiers
Mindat Occurrence Record ID:862794
Long-form Identifier:1:3:862794:0
GUID (UUID V4):0
Nearest other occurrences of Calcite
24.7km (15.3 miles) ⓘPontinha nº3 Mine, Souto Maior, Sabrosa, Vila Real, Portugal
24.7km (15.4 miles) ⓘVinheiros Mine, Souto Maior, Sabrosa, Vila Real, Portugal
25.4km (15.8 miles) ⓘCodeceira Mine, Vale das Gatas Mines (São Lourenço de Riba Pinhão and Souto Maior), Sabrosa, Vila Real, Portugal
26.4km (16.4 miles) ⓘRatoeira quarry, U.F. Sequeiros e Gradiz, Aguiar da Beira, Guarda, Portugal
28.5km (17.7 miles) ⓘNumão prospect, Numão, Vila Nova de Foz Côa, Guarda, Portugal
30.7km (19.1 miles) ⓘAssunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal
42.7km (26.5 miles) ⓘGralheira Mine, Alfarela de Jales, Vila Pouca de Aguiar, Vila Real, Portugal
42.8km (26.6 miles) ⓘJales Mines (Jales Mining Field), Alfarela de Jales, Vila Pouca de Aguiar, Vila Real, Portugal
54.0km (33.5 miles) ⓘRibeira do Mosteiro Mines (Riba de Alva Mines), Poiares, Freixo de Espada à Cinta, Bragança, Portugal
68.1km (42.3 miles) ⓘOurais Mine, Raiva, Castelo de Paiva, Aveiro, Portugal
References
LNEG/Siorminp database
Ramos, Violeta, Noronha, Fernando, Seltmann, Reimar, Dolgopolova, Alla, Guedes, Alexandra, Andersen, Jens, Spruženiece, Liene, Simons, Beth, Rollinson, Gavyn, Pickles, Joe, et al. (2024) São Pedro das Águias skarn: A W-(Sn) deposit from the Douro Scheelite Belt, Northern Portugal. Ore Geology Reviews, 175. 106348 doi:10.1016/j.oregeorev.2024.106348
 
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