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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Chlorite Group from
Casas Novas Mine, Santiago do Escoural, Montemor-o-Novo, Évora, Portugal


Locality type:Mine
Classification
Species:'Chlorite Group' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chlorite Group data
Locality Data:Click here to view Casas Novas Mine, Santiago do Escoural, Montemor-o-Novo, Évora, Portugal
Data Identifiers
Mindat Occurrence Record ID:1972017
Long-form Identifier:1:3:1972017:9
GUID (UUID V4):0
Nearest other occurrences of Chlorite Group
15.2km (9.5 miles) ⓘMonfurado gold prospect, São Cristóvão, Montemor-o-Novo, Évora, Portugal
33.0km (20.5 miles) ⓘAlvito Mine, Vila Nova de Baronia, Alvito, Beja, Portugal
42.6km (26.4 miles) ⓘArado do Castanheiro Mine, Santana, Portel, Évora, Portugal
46.1km (28.7 miles) ⓘLagoa Salgada deposit, Grândola e Santa Margarida da Serra, Grândola, Setúbal, Portugal
62.8km (39.0 miles) ⓘLousal Mine, Azinheira dos Barros, Grândola, Setúbal, Portugal
67.6km (42.0 miles) ⓘHerdade da Ventosa Mine, Nossa Senhora das Neves, Beja, Beja, Portugal
75.3km (46.8 miles) ⓘAlgares deposit, Aljustrel Mine, Aljustrel e Rio de Moinhos, Aljustrel, Beja, Portugal
82.9km (51.5 miles) ⓘCabeço de Vide ultramafic complex, Alter do Chão, Portalegre, Portugal
87.5km (54.4 miles) ⓘS. Martinho, Crato e Mártires Flor da Rosa e Vale do Peso, Crato, Portalegre, Portugal
90.5km (56.2 miles) ⓘPreguiça Mine, Sobral da Adiça, Moura, Beja, Portugal
References
São Pedro, Diogo; Roseiro, José; Pedro, Jorge; Mirão, José; Fuertes-Fuente, Mercedes; Nogueira, Pedro (2026) Decoding Orogenic Gold Mineralization Types During Regional Metamorphic Evolution: Detailed Textural Analysis from a Deposit in the Ossa-Morena Zone (SW Iberia). Minerals, 16 (7). doi:10.3390/min16070709
 
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