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
Fonte da Madre Mine, U.F Vale Flor， Carvalhal e Pai Penela, Mêda, Guarda, 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 Fonte da Madre Mine, U.F Vale Flor， Carvalhal e Pai Penela, Mêda, Guarda, Portugal
Data Identifiers
Mindat Occurrence Record ID:915672
Long-form Identifier:1:3:915672:2
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
7.9km (4.9 miles) ⓘAfife Mine, Coriscada, Mêda, Guarda, Portugal
9.9km (6.1 miles) ⓘCanada da Sardinha Mine, Coriscada, Mêda, Guarda, Portugal
12.5km (7.8 miles) ⓘLamega Mine, Santa Comba, Vila Nova de Foz Côa, Guarda, Portugal
13.7km (8.5 miles) ⓘMassueime Mines, Cótimos, Trancoso, Guarda, Portugal
16.9km (10.5 miles) ⓘVale do Vinagre and Caiporotos Mines, Pala, Pinhel, Guarda, Portugal
17.1km (10.6 miles) ⓘAlmendra Mining Field, Almendra, Vila Nova de Foz Côa, Guarda, Portugal
18.3km (11.4 miles) ⓘFreixo de Numão Mining Field, U.F Mura e Freixo de Numão, Vila Nova de Foz Côa, Guarda, Portugal
18.8km (11.7 miles) ⓘJudeu Mine, Póvoa de Penela, Penedono, Viseu, Portugal
21.2km (13.2 miles) ⓘPonte do Vale Mines, U.F Mós， Santo Amaro e Vila Nova Foz Côa, Vila Nova de Foz Côa, Guarda, Portugal
21.4km (13.3 miles) ⓘAlminhas Mine, U.F Mós， Santo Amaro e Vila Nova Foz Côa, Vila Nova de Foz Côa, Guarda, Portugal
References
LNEG - Laboratório Nacional de Energia e Geologia, Siorminp ID 1502WSn
 
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