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
Valdarcas Mine, Covas, Vila Nova de Cerveira, Viana do Castelo, 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 Valdarcas Mine, Covas, Vila Nova de Cerveira, Viana do Castelo, Portugal
Data Identifiers
Mindat Occurrence Record ID:219324
Long-form Identifier:1:3:219324:3
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
0.8km (0.5 miles) ⓘCerdeirinha Mine, Arga de Baixo, Caminha, Viana do Castelo, Portugal
3.7km (2.3 miles) ⓘSerra de Covas - Chãos e Penedo do Outão Mines, Covas, Vila Nova de Cerveira, Viana do Castelo, Portugal
4.3km (2.7 miles) ⓘSerra de Lousado Mine No. 3, Coura, Paredes de Coura, Viana do Castelo, Portugal
5.1km (3.2 miles) ⓘRibeiro do Salgueiro and Covas dos Mouros Mines, Arga de Cima, Caminha, Viana do Castelo, Portugal
6.0km (3.7 miles) ⓘCastelhão Mine, Vilar de Mouros, Caminha, Viana do Castelo, Portugal
6.1km (3.8 miles) ⓘMonteiro Mine, Cabração e Moreira do Lima, Ponte de Lima, Viana do Castelo, Portugal
6.2km (3.9 miles) ⓘEiradas Mine, Cabração e Moreira do Lima, Ponte de Lima, Viana do Castelo, Portugal
6.5km (4.0 miles) ⓘAndorinheiras Mine, Estorãos, Ponte de Lima, Viana do Castelo, Portugal
7.1km (4.4 miles) ⓘRio Âncora, Montaria, Viana do Castelo, Viana do Castelo, Portugal
7.4km (4.6 miles) ⓘMonte do Formigoso Mine, Cabração e Moreira do Lima, Ponte de Lima, Viana do Castelo, Portugal
References
 
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