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
Nave de Haver (open pit), Nave de Haver, Almeida, Guarda, 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 Nave de Haver (open pit), Nave de Haver, Almeida, Guarda, Portugal
Data Identifiers
Mindat Occurrence Record ID:870359
Long-form Identifier:1:3:870359:0
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
2.0km (1.3 miles) ⓘNave de Haver Mining Field, Nave de Haver, Almeida, Guarda, Portugal
4.8km (3.0 miles) ⓘFonte Medeiros Mine, Badamalos (Vilar Maior e Aldeia da Ribeira), Sabugal, Guarda, Portugal
8.2km (5.1 miles) ⓘMoita da Lomba Mine, Aldeia da Ponte, Sabugal, Guarda, Portugal
9.4km (5.8 miles) ⓘNave do Bispo Mine, Freineda, Almeida, Guarda, Portugal
11.6km (7.2 miles) ⓘAtalaia Mines, Vilar Formoso, Almeida, Guarda, Portugal
12.8km (8.0 miles) ⓘQuinta de Cima Mine, Seixo do Côa e Valongo do Côa, Sabugal, Guarda, Portugal
23.0km (14.3 miles) ⓘCabeço da Longueira Mine, Fóios, Sabugal, Guarda, Portugal
23.2km (14.4 miles) ⓘCastillejo de Dos Casas, Aldea del Obispo, Salamanca, Castile and Leon, Spain
23.4km (14.5 miles) ⓘLa Canalita Sn-rich pegmatitic dykes, Peñaparda, Salamanca, Castile and Leon, Spain
23.8km (14.8 miles) ⓘSafurdão Mining Field, U.F Atalaia e Safurdão, Pinhel, Guarda, Portugal
References
LNEG
 
and/or  
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