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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Tourmaline from
Golpejas Mining Group, Golpejas, Salamanca, Castile and Leon, Spain


Locality type:Mine
Classification
Species:'Tourmaline' (not an IMA approved species)
Formula:AD3G6(T6O18)(BO3)3X3Z
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tourmaline data
Locality Data:Click here to view Golpejas Mining Group, Golpejas, Salamanca, Castile and Leon, Spain
Data Identifiers
Mindat Occurrence Record ID:1992261
Long-form Identifier:1:3:1992261:6
GUID (UUID V4):0
Nearest other occurrences of Tourmaline
9.6km (6.0 miles) ⓘLa Rescatada Mine, Aldehuela de la Bóveda, Salamanca, Castile and Leon, Spain
10.8km (6.7 miles) ⓘEl Cubito Mine (Grupo minero Las Españas), Carrascal de Barregas, Salamanca, Castile and Leon, Spain
11.3km (7.0 miles) ⓘValle Largo Mine, Villalba de los Llanos, Salamanca, Castile and Leon, Spain
42.9km (26.7 miles) ⓘLos Santos W deposit, Los Santos, Salamanca, Castile and Leon, Spain
49.0km (30.5 miles) ⓘGold deposits (incl. Saturno Mine; Los Espinos Valley), Barruecopardo, Salamanca, Castile and Leon, Spain
60.9km (37.8 miles) ⓘBarruecopardo Mine, Barruecopardo, Salamanca, Castile and Leon, Spain
71.0km (44.1 miles) ⓘCastillejo de Dos Casas, Aldea del Obispo, Salamanca, Castile and Leon, Spain
75.9km (47.1 miles) ⓘVillaflor, Muelas del Pan, Zamora, Castile and Leon, Spain
76.8km (47.7 miles) ⓘCerezal de Aliste, Muelas del Pan, Zamora, Castile and Leon, Spain
77.6km (48.2 miles) ⓘRibeira do Mosteiro Mines (Riba de Alva Mines), Poiares, Freixo de Espada à Cinta, Bragança, Portugal
References
Mota, Alexandra; Sant’Ovaia, Helena; Fádon, Oscar; Noronha, Fernando (2026) The Geochemistry of Granites Associated with W-Sn Deposits of North and Central Portugal and Castilla-León in Spain. Minerals, 16 (8). doi:10.3390/min16080823
 
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