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
Vale da Ermida Mining Field, Unhais-o-Velho, Pampilhosa da Serra, Coimbra, Portugal


Locality type:Mining 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 Vale da Ermida Mining Field, Unhais-o-Velho, Pampilhosa da Serra, Coimbra, Portugal
Data Identifiers
Mindat Occurrence Record ID:927387
Long-form Identifier:1:3:927387:0
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
3.2km (2.0 miles) ⓘBarroca Grande Mine, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Portugal
12.5km (7.8 miles) ⓘVolta de São Mamede Mine, Janeiro de Cima e Bogas de Baixo, Fundão, Castelo Branco, Portugal
13.5km (8.4 miles) ⓘRecheira Mine, Barco e Coutada, Covilhã, Castelo Branco, Portugal
14.9km (9.2 miles) ⓘArgimela Mine (Argemela Mine), Barco e Coutada, Covilhã, Castelo Branco, Portugal
21.6km (13.4 miles) ⓘSazes da Beira Mines, Sazes da Beira, Seia, Guarda, Portugal
22.0km (13.6 miles) ⓘMalhão Mining Field, Sazes da Beira, Seia, Guarda, Portugal
22.9km (14.2 miles) ⓘPedra da Mesa Mining Field, Cortes do Meio, Covilhã, Castelo Branco, Portugal
23.5km (14.6 miles) ⓘVale de Pião Mine, Cadafaz e Colmeal, Góis, Coimbra, Portugal
25.3km (15.7 miles) ⓘPedras do Estanho Mine, Vila Cova-à-Coelheira, Seia, Guarda, Portugal
27.0km (16.8 miles) ⓘGóis Mining Field, Góis, Coimbra, Portugal
References
Direcção de Minas - registo de concessões mineiras até 1962
 
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