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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Chalcocite from
Herdade de Entre Matinhas Mine, Alcáçovas, Viana do Alentejo, Évora, Portugal


Locality type:Mine
Classification
Species:Chalcocite
Formula:Cu2S
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcocite data
Locality Data:Click here to view Herdade de Entre Matinhas Mine, Alcáçovas, Viana do Alentejo, Évora, Portugal
Data Identifiers
Mindat Occurrence Record ID:900617
Long-form Identifier:1:3:900617:1
GUID (UUID V4):0
Nearest other occurrences of Chalcocite
3.3km (2.1 miles) ⓘVale de Nogueira Mine, Alcáçovas, Viana do Alentejo, Évora, Portugal
13.8km (8.6 miles) ⓘAlcalainha Mine, Nossa Senhora da Tourega e Nossa Senhora de Guadalupe, Évora, Évora, Portugal
29.6km (18.4 miles) ⓘLagoa Salgada deposit, Grândola e Santa Margarida da Serra, Grândola, Setúbal, Portugal
41.8km (25.9 miles) ⓘLousal Mine, Azinheira dos Barros, Grândola, Setúbal, Portugal
50.2km (31.2 miles) ⓘJuliana Mine, Santa Vitória e Mombeja, Beja, Beja, Portugal
50.8km (31.6 miles) ⓘHerdade da Ventosa Mine, Nossa Senhora das Neves, Beja, Beja, Portugal
61.3km (38.1 miles) ⓘFateota Mine, Santiago do Cacém, Santiago do Cacém， Santa Cruz e São Bartolomeu da Serra, Santiago do Cacém, Setúbal, Portugal
70.6km (43.9 miles) ⓘMostardeira Mine, Glória, Estremoz, Évora, Portugal
79.6km (49.5 miles) ⓘMiguel Vacas Mine, Nossa Senhora da Conceição e São Bartolomeu, Vila Viçosa, Évora, Portugal
81.5km (50.7 miles) ⓘMonte Velho Mine, Castro Verde e Casével, Castro Verde, Beja, Portugal
References
LNEG - Laboratório Nacional de Energia e Geologia (Siorminp ID 1147Cu)
 
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