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
Vieiros Mines, Rebordelo, Amarante, Porto, 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 Vieiros Mines, Rebordelo, Amarante, Porto, Portugal
Data Identifiers
Mindat Occurrence Record ID:917794
Long-form Identifier:1:3:917794:9
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
0.7km (0.4 miles) ⓘVieiros Mining Field, Canadelo, Olo e Canadelo, Amarante, Porto, Portugal
4.6km (2.8 miles) ⓘFontela Mine, Aboim, Vila Garcia， Aboim e Chapa, Amarante, Porto, Portugal
4.6km (2.8 miles) ⓘCosta da Revolta Mine, Aboim, Vila Garcia， Aboim e Chapa, Amarante, Porto, Portugal
6.1km (3.8 miles) ⓘFonte da Figueira No. 1 Mine (Pedrado Mine), Aboadela, Aboadela， Sanche e Várzea, Amarante, Porto, Portugal
7.5km (4.7 miles) ⓘEsteriz Mine, Vila Garcia, Vila Garcia， Aboim e Chapa, Amarante, Porto, Portugal
8.5km (5.3 miles) ⓘRamalhoso Mines, Ansiāes, Amarante, Porto, Portugal
9.0km (5.6 miles) ⓘCarriço Mine, Veade， Gagos e Molares, Celorico de Basto, Braga, Portugal
10.0km (6.2 miles) ⓘTapada da Bemposta No.1 Mine, Seixoso Mining Field, Borba de Godim, Vila Cova da Lixa e Borba de Godim, Felgueiras, Porto, Portugal
10.3km (6.4 miles) ⓘPombeiro Mine, Telões, Amarante, Porto, Portugal
10.3km (6.4 miles) ⓘCorredoura Mine, Freixo de Baixo, Freixo de Cima e de Baixo, Amarante, Porto, Portugal
References
LNEG - Laboratório Nacional de Energia e Geologia, Siorminp ID 790SnTa
Maijer 1965, Neiva 1992
 
and/or  
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