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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Muscovite from
Barrigão Mine, Santa Cruz, Almodôvar, Beja, Portugal


Locality type:Mine
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view Barrigão Mine, Santa Cruz, Almodôvar, Beja, Portugal
Data Identifiers
Mindat Occurrence Record ID:1322609
Long-form Identifier:1:3:1322609:7
GUID (UUID V4):0
Nearest other occurrences of Muscovite
7.7km (4.8 miles) ⓘNeves-Corvo Mine, Santa Bárbara de Padrões, Castro Verde, Beja, Portugal
8.9km (5.5 miles) ⓘBrancanes Mine, Brancanes, Almodôvar e Graça dos Padrões, Almodôvar, Beja, Portugal
11.0km (6.8 miles) ⓘCerro do Algaré Mine, Almodôvar e Graça dos Padrões, Almodôvar, Beja, Portugal
13.5km (8.4 miles) ⓘPorteirinhos Mine, Almodôvar e Graça dos Padrões, Almodôvar, Beja, Portugal
18.5km (11.5 miles) ⓘHerdade do Ferragudo Mine, Castro Verde e Casével, Castro Verde, Beja, Portugal
43.0km (26.7 miles) ⓘFerrarias e Castelo Mine, Santa Vitória e Mombeja, Beja, Beja, Portugal
44.6km (27.7 miles) ⓘAlgares deposit, Aljustrel Mine, Aljustrel e Rio de Moinhos, Aljustrel, Beja, Portugal
44.7km (27.8 miles) ⓘFeitais deposit, Aljustrel Mine, Aljustrel e Rio de Moinhos, Aljustrel, Beja, Portugal
61.7km (38.4 miles) ⓘPalmeira No. 2 quarry, Monchique, Monchique, Faro, Portugal
65.1km (40.5 miles) ⓘTorgal Mine, São Luís, Odemira, Beja, Portugal
References
Reiser, Fiona K.M., Rosa, Diogo R.N., Pinto, Álvaro M.M., Carvalho, João R.S., Matos, João X., Guimarães, Fernanda M.G., Alves, Luís C., de Oliveira, Daniel P.S. (2011) Mineralogy and geochemistry of tin- and germanium-bearing copper ore, Barrigão re-mobilized vein deposit, Iberian Pyrite Belt, Portugal. International Geology Review, 53 (10) 1212-1238 doi:10.1080/00206811003683168
Oliveira, Daniel P. S. de, Silva, Teresa P., Morais, Igor, Fernandes, João A. E. (2025) Chemical and Mineralogical Characterization of Waste from Abandoned Copper and Manganese Mines in the Iberian Pyrite Belt, Portugal: A First Step Towards the Waste-to-Value Recycling Process. Minerals, 15 (1). doi:10.3390/min15010058
 
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