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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Phosphosiderite from
Chão do Castanheiro, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal


Locality type:Mine
Classification
Species:Phosphosiderite
Formula:FePO4 · 2H2O
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Data
Mineral Data:Click here to view Phosphosiderite data
Locality Data:Click here to view Chão do Castanheiro, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
Data Identifiers
Mindat Occurrence Record ID:843988
Long-form Identifier:1:3:843988:8
GUID (UUID V4):0
Nearest other occurrences of Phosphosiderite
1.1km (0.7 miles) ⓘCubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
4.4km (2.7 miles) ⓘRegada, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
9.7km (6.0 miles) ⓘCorvaceira quarry, Corvaceira, Tavares (Chãs; Várzea e Travanca), Mangualde, Viseu, Portugal
22.2km (13.8 miles) ⓘLagares Mining Field, Vila Nova de Paiva, Viseu, Portugal
22.2km (13.8 miles) ⓘRebentão Mine, Lagares do Estanho Mines, Queiriga, Vila Nova de Paiva, Viseu, Portugal
22.2km (13.8 miles) ⓘSítio do Castelo Mine, Folgosinho, Gouveia, Guarda, Portugal
28.1km (17.5 miles) ⓘAssunção Mine, Aldeia Nova, Ferreira de Aves, Sátão, Viseu, Portugal
34.4km (21.4 miles) ⓘVermilhas No. 1 Mine, U.F Cambra e Carvalhal de Vermilhas, Vouzela, Viseu, Portugal
41.3km (25.7 miles) ⓘVela Nordeste quarry, Vela, Guarda, Guarda, Portugal
48.2km (29.9 miles) ⓘBendada Mines, Bendada, Sabugal, Guarda, Portugal
References
Nunes, Rui (n.d.) Personal communication.
Grey, Ian E.; Rewitzer, Christian; Hochleitner, Rupert; Kampf, Anthony R.; Boer, Stephanie; Mumme, William G.; Wilson, Nicholas C. (2024) Macraeite, [(H2O)K]Mn2(Fe2Ti)(PO4)4[O(OH)](H2O)10  ⋅  4H2O, a new monoclinic paulkerrite-group mineral, from the Cubos–Mesquitela–Mangualde pegmatite, Portugal. European Journal of Mineralogy, 36 (2). 267-278 doi:10.5194/ejm-36-267-2024
 
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