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
São Miguel - Borralhas and Roxo Mines, Cota, Viseu, Viseu, 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 São Miguel - Borralhas and Roxo Mines, Cota, Viseu, Viseu, Portugal
Data Identifiers
Mindat Occurrence Record ID:913334
Long-form Identifier:1:3:913334:1
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
2.2km (1.4 miles) ⓘRebentão Mine, Lagares do Estanho Mines, Queiriga, Vila Nova de Paiva, Viseu, Portugal
2.2km (1.4 miles) ⓘLagares Mining Field, Vila Nova de Paiva, Viseu, Portugal
2.8km (1.7 miles) ⓘBorralhas No. 2 Mine, Cota, Viseu, Viseu, Portugal
9.7km (6.0 miles) ⓘTeixelo Mine, Mões, Castro Daire, Viseu, Portugal
12.0km (7.4 miles) ⓘAssunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal
17.0km (10.5 miles) ⓘAlto da Cruz No. 2 Mine, Castro Daire, Castro Daire, Viseu, Portugal
17.1km (10.6 miles) ⓘAlto da Cruz No. 1 Mine, Castro Daire, Castro Daire, Viseu, Portugal
17.7km (11.0 miles) ⓘPorto Mine, Quintela de Azurara, Mangualde, Viseu, Portugal
17.8km (11.1 miles) ⓘNossa Senhora da Esperança quarry, Quintela de Azurara, Mangualde, Viseu, Portugal
18.1km (11.3 miles) ⓘReal quarry, Real, Penalva do Castelo, Viseu, Portugal
References
LNEG - Laboratório Nacional de Energia e Geologia, Siorminp ID 1383Sn
 
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