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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Cassiterite from
Argimela Mine (Argemela Mine), Barco e Coutada, Covilhã, Castelo Branco, Portugal


07157960017370922346962.jpg
Cassiterite

Argimela Mine, Barco e Coutada, Covilhã, Castelo Branco, Portugal
07157960017370922346962.jpg
Cassiterite

Argimela Mine, Barco e Coutada, Covilhã, Castelo Branco, Portugal
07157960017370922346962.jpg
Cassiterite

Argimela Mine, Barco e Coutada, Covilhã, Castelo Branco, Portugal
Locality type:Mine
Classification
Species:Cassiterite
Formula:SnO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cassiterite data
Locality Data:Click here to view Argimela Mine (Argemela Mine), Barco e Coutada, Covilhã, Castelo Branco, Portugal
Data Identifiers
Mindat Occurrence Record ID:289901
Long-form Identifier:1:3:289901:5
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
1.8km (1.1 miles) ⓘRecheira Mine, Barco e Coutada, Covilhã, Castelo Branco, Portugal
11.7km (7.3 miles) ⓘBarroca Grande Mine, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Portugal
12.8km (8.0 miles) ⓘPedra da Mesa Mining Field, Cortes do Meio, Covilhã, Castelo Branco, Portugal
14.9km (9.2 miles) ⓘVale da Ermida Mining Field, Unhais-o-Velho, Pampilhosa da Serra, Coimbra, Portugal
15.4km (9.6 miles) ⓘPero Viseu Mining Field - Meimôa, Pero Viseu, Fundão, Castelo Branco, Portugal
16.6km (10.3 miles) ⓘVale do Ferro Mine, Fatela, Fundão, Castelo Branco, Portugal
19.3km (12.0 miles) ⓘCaberna e Quinta da Caverna de Baixo Mine, Capinha, Fundão, Castelo Branco, Portugal
20.6km (12.8 miles) ⓘVolta de São Mamede Mine, Janeiro de Cima e Bogas de Baixo, Fundão, Castelo Branco, Portugal
21.6km (13.4 miles) ⓘMonte das Areias e Vale da Torre Mine, Póvoa de Atalaia e Atalaia do Campo, Fundão, Castelo Branco, Portugal
21.7km (13.5 miles) ⓘVila de Mouros Mine, Cantar-Galo e Vila do Carvalho, Covilhã, Castelo Branco, Portugal
References
Pereira, E.G., Antunes, I.M., and Monteiro, M.C.H.M. (2010): Goldschmidt Conference Abstracts 2010.
Ribeiro, Ricardo, Capela, Diana, Ferreira, Miguel, Martins, Rui, Jorge, Pedro, Guimarães, Diana, Lima, Alexandre (2021) X-ray Fluorescence and Laser-Induced Breakdown Spectroscopy Analysis of Li-Rich Minerals in Veins from Argemela Tin Mine, Central Portugal. Minerals, 11 (11) 1169 doi:10.3390/min11111169
 
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