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
Nossa Senhora - Portela - Corga and Fiais do Ervedal Mines, Ervedal e Vila Franca da Beira, Oliveira do Hospital, Coimbra, 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 Nossa Senhora - Portela - Corga and Fiais do Ervedal Mines, Ervedal e Vila Franca da Beira, Oliveira do Hospital, Coimbra, Portugal
Data Identifiers
Mindat Occurrence Record ID:917568
Long-form Identifier:1:3:917568:6
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
2.8km (1.8 miles) ⓘUrgueiras Mine, Ervedal e Vila Franca da Beira, Oliveira do Hospital, Coimbra, Portugal
6.2km (3.8 miles) ⓘCorga Mine, Seixo da Beira, Oliveira do Hospital, Coimbra, Portugal
7.8km (4.9 miles) ⓘCorga da Poldrinha Mine, Seixo da Beira, Oliveira do Hospital, Coimbra, Portugal
11.3km (7.0 miles) ⓘParanhos Mining Field, Paranhos, Seia, Guarda, Portugal
12.9km (8.0 miles) ⓘOlival da Meia Légua Mine, Carragozela e Várzea de Meruge, Seia, Guarda, Portugal
13.7km (8.5 miles) ⓘPedras do Estanho Mine, Vila Cova-à-Coelheira, Seia, Guarda, Portugal
16.2km (10.1 miles) ⓘTourais-Lages Mining Field, Tourais e Lajes, Seia, Guarda, Portugal
16.2km (10.1 miles) ⓘSazes da Beira Mines, Sazes da Beira, Seia, Guarda, Portugal
16.4km (10.2 miles) ⓘMalhão Mining Field, Sazes da Beira, Seia, Guarda, Portugal
20.7km (12.8 miles) ⓘPontinha No. 4 quarry, Pinhanços, Seia, Guarda, Portugal
References
LNEG - Laboratório Nacional de Energia e Geologia, Siorminp ID 2040SnTi
 
and/or  
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