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
Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal


06908300017370854331651.jpg
Cassiterite

Cubos-Mesquitela-Mangualde area, Mangualde, Mangualde, Viseu, Portugal
06908300017370854331651.jpg
Cassiterite

Cubos-Mesquitela-Mangualde area, Mangualde, Mangualde, Viseu, Portugal
02608740017272006334410.jpg
Cassiterite

Cubos-Mesquitela-Mangualde area, Mangualde, Mangualde, Viseu, Portugal
Locality type:Pegmatite Field
Classification
Species:Cassiterite
Formula:SnO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cassiterite data
Locality Data:Click here to view Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
Data Identifiers
Mindat Occurrence Record ID:1033047
Long-form Identifier:1:3:1033047:8
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
6.6km (4.1 miles) ⓘNossa Senhora da Esperança quarry, Quintela de Azurara, Mangualde, Viseu, Portugal
6.6km (4.1 miles) ⓘPorto Mine, Quintela de Azurara, Mangualde, Viseu, Portugal
8.7km (5.4 miles) ⓘReal quarry, Real, Penalva do Castelo, Viseu, Portugal
9.9km (6.2 miles) ⓘAljão Mine, Cativelos, Gouveia, Guarda, Portugal
12.0km (7.5 miles) ⓘParanhos Mining Field, Paranhos, Seia, Guarda, Portugal
12.3km (7.7 miles) ⓘA Quinta Mine, Arcozelo, Gouveia, Guarda, Portugal
12.4km (7.7 miles) ⓘTourais-Lages Mining Field, Tourais e Lajes, Seia, Guarda, Portugal
13.0km (8.1 miles) ⓘBoco Mine, Arcozelo, Gouveia, Guarda, Portugal
14.2km (8.8 miles) ⓘQuinta das Ferragens, Moimenta da Serra e Vinhó, Gouveia, Guarda, Portugal
15.3km (9.5 miles) ⓘPontinha No. 4 quarry, Pinhanços, Seia, Guarda, Portugal
References
Museu Alfredo Bensaúde, IST Lisbon, mineral collection.
 
and/or  
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