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


Locality type:Mine
Classification
Species:Tremolite
Formula:◻Ca2Mg5(Si8O22)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tremolite data
Locality Data:Click here to view Casas Novas Mine, Santiago do Escoural, Montemor-o-Novo, Évora, Portugal
Data Identifiers
Mindat Occurrence Record ID:1972116
Long-form Identifier:1:3:1972116:9
GUID (UUID V4):0
Nearest other occurrences of Tremolite
2.9km (1.8 miles) ⓘTerra das Freiras quarry, Santiago do Escoural, Montemor-o-Novo, Évora, Portugal
15.2km (9.5 miles) ⓘMonfurado gold prospect, São Cristóvão, Montemor-o-Novo, Évora, Portugal
42.6km (26.4 miles) ⓘArado do Castanheiro Mine, Santana, Portel, Évora, Portugal
45.2km (28.1 miles) ⓘHerdade dos Alfaiates Mine, Vidigueira, Vidigueira, Beja, Portugal
45.2km (28.1 miles) ⓘCerro da Malhada Mine, Vidigueira, Vidigueira, Beja, Portugal
65.8km (40.9 miles) ⓘOrada Mine, Pias, Serpa, Beja, Portugal
87.8km (54.6 miles) ⓘCêrro da Oca Mine, Vale de Vargo, Vila Nova de São Bento e Vale de Vargo, Serpa, Beja, 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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