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
Freixo de Numão Mining Field, U.F Mura e Freixo de Numão, Vila Nova de Foz Côa, Guarda, 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 Freixo de Numão Mining Field, U.F Mura e Freixo de Numão, Vila Nova de Foz Côa, Guarda, Portugal
Data Identifiers
Mindat Occurrence Record ID:916985
Long-form Identifier:1:3:916985:2
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
3.2km (2.0 miles) ⓘAlminhas Mine, U.F Mós， Santo Amaro e Vila Nova Foz Côa, Vila Nova de Foz Côa, Guarda, Portugal
4.6km (2.9 miles) ⓘPonte do Vale Mines, U.F Mós， Santo Amaro e Vila Nova Foz Côa, Vila Nova de Foz Côa, Guarda, Portugal
10.0km (6.2 miles) ⓘFarinhata Mine, Lousa, Torre de Moncorvo, Bragança, Portugal
13.1km (8.1 miles) ⓘAlmendra Mining Field, Almendra, Vila Nova de Foz Côa, Guarda, Portugal
13.3km (8.3 miles) ⓘAsno Morto Mine, Vilarinho da Castanheira, Carrazeda de Ansiães, Bragança, Portugal
13.6km (8.5 miles) ⓘParaíso Mine, Vilarinho da Castanheira, Carrazeda de Ansiães, Bragança, Portugal
13.9km (8.6 miles) ⓘLamega Mine, Santa Comba, Vila Nova de Foz Côa, Guarda, Portugal
17.1km (10.6 miles) ⓘJudeu Mine, Póvoa de Penela, Penedono, Viseu, Portugal
17.6km (10.9 miles) ⓘCumieira Mine, Valtorno e Mourão, Vila Flor, Bragança, Portugal
17.9km (11.1 miles) ⓘBajoca Mine, Almendra, Vila Nova de Foz Côa, Guarda, Portugal
References
LNEG - Laboratório Nacional de Energia e Geologia, Siorminp ID 1475SnW
 
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