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
Espadana - Inchidro and Tapada da Vargem Mines, Lardosa, Castelo Branco, Castelo Branco, 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 Espadana - Inchidro and Tapada da Vargem Mines, Lardosa, Castelo Branco, Castelo Branco, Portugal
Data Identifiers
Mindat Occurrence Record ID:904881
Long-form Identifier:1:3:904881:2
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
3.0km (1.9 miles) ⓘMonte das Areias e Vale da Torre Mine, Póvoa de Atalaia e Atalaia do Campo, Fundão, Castelo Branco, Portugal
8.8km (5.5 miles) ⓘChafariz Velho Mine, Alcains, Castelo Branco, Castelo Branco, Portugal
9.0km (5.6 miles) ⓘRoncões and Fonte Serrana Mines, União de Freguesias de Escalos de Cima e Lousa, Castelo Branco, Castelo Branco, Portugal
16.7km (10.4 miles) ⓘTapada dos Carvalhos e Carvalhal Mines, União de Freguesias Idanha-a-Nova e Alcafozes, Idanha-a-Nova, Castelo Branco, Portugal
16.8km (10.5 miles) ⓘCanchal da Terrinha Mine, Penamacor, Penamacor, Castelo Branco, Portugal
16.8km (10.5 miles) ⓘEspadanal Mine, União de Freguesias de Pedrogão de S Pedro e Bemposta, Penamacor, Castelo Branco, Portugal
16.8km (10.5 miles) ⓘMonte Queimado Mine, União de Freguesias de Pedrogão de S Pedro e Bemposta, Penamacor, Castelo Branco, Portugal
16.8km (10.5 miles) ⓘCabeço do Seixo Mine, União de Freguesias de Pedrogão de S Pedro e Bemposta, Penamacor, Castelo Branco, Portugal
16.8km (10.5 miles) ⓘMata da Rainha Mine, União de Freguesias de Pedrogão de S Pedro e Bemposta, Penamacor, Castelo Branco, Portugal
17.1km (10.6 miles) ⓘMatas da Rainha Mines - Carvoeira e Senhora da Granja, Proença-a-Velha, Idanha-a-Nova, Castelo Branco, Portugal
References
LNEG - Laboratório Nacional de Energia e Geologia, Siorminp ID 1941SnTi
 
and/or  
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