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
Capela de Nossa Senhora da Rocha Mine, Nogueira， Meixedo e Vilar de Murteda, Viana do Castelo, Viana do Castelo, Portugal


Locality type:Mine
Classification
Species:Cassiterite
Formula:SnO2
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Cassiterite data
Locality Data:Click here to view Capela de Nossa Senhora da Rocha Mine, Nogueira， Meixedo e Vilar de Murteda, Viana do Castelo, Viana do Castelo, Portugal
Data Identifiers
Mindat Occurrence Record ID:862395
Long-form Identifier:1:3:862395:9
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
0.9km (0.5 miles) ⓘMeixedo Mine, Nogueira， Meixedo e Vilar de Murteda, Viana do Castelo, Viana do Castelo, Portugal
1.1km (0.7 miles) ⓘCalvelo Mine, Nogueira， Meixedo e Vilar de Murteda, Viana do Castelo, Viana do Castelo, Portugal
1.4km (0.9 miles) ⓘCruz da Lenta Mine, Nogueira， Meixedo e Vilar de Murteda, Viana do Castelo, Viana do Castelo, Portugal
2.9km (1.8 miles) ⓘSerra de Santa Justa No. 2 Mine, São Pedro d'Arcos, Ponte de Lima, Viana do Castelo, Portugal
3.0km (1.9 miles) ⓘBalsas Mine, São Pedro d'Arcos, Ponte de Lima, Viana do Castelo, Portugal
3.1km (1.9 miles) ⓘRasas e Cobalto Mines, Torre e Vila Mou, Viana do Castelo, Viana do Castelo, Portugal
3.9km (2.4 miles) ⓘSerra D'Arga, Ponte de Lima, Viana do Castelo, Portugal
4.3km (2.7 miles) ⓘEstorãos Mine, Estorãos, Ponte de Lima, Viana do Castelo, Portugal
4.8km (3.0 miles) ⓘUnnamed mine, Estorãos, Ponte de Lima, Viana do Castelo, Portugal
5.6km (3.5 miles) ⓘRio Âncora, Montaria, Viana do Castelo, Viana do Castelo, Portugal
References
LNEG/Siorminp database
 
and/or  
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