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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Stewartite from
Corvaceira quarry, Corvaceira, Tavares (Chãs; Várzea e Travanca), Mangualde, Viseu, Portugal


05939390017272038897049.jpg
Stewartite, etc.

Corvaceira quarry, Corvaceira, Tavares, Mangualde, Viseu, Portugal
08217890017371714949898.jpg
Stewartite, etc.

Corvaceira quarry, Corvaceira, Tavares, Mangualde, Viseu, Portugal
05939390017272038897049.jpg
Stewartite, etc.

Corvaceira quarry, Corvaceira, Tavares, Mangualde, Viseu, Portugal
08217890017371714949898.jpg
Stewartite, etc.

Corvaceira quarry, Corvaceira, Tavares, Mangualde, Viseu, Portugal
05939390017272038897049.jpg
Stewartite, etc.

Corvaceira quarry, Corvaceira, Tavares, Mangualde, Viseu, Portugal
08217890017371714949898.jpg
Stewartite, etc.

Corvaceira quarry, Corvaceira, Tavares, Mangualde, Viseu, Portugal
Locality type:Quarry
Classification
Species:Stewartite
Formula:Mn2+Fe23+(PO4)2(OH)2 · 8H2O
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Hureaulite2
Rockbridgeite2
Phosphosiderite2
Data
Mineral Data:Click here to view Stewartite data
Locality Data:Click here to view Corvaceira quarry, Corvaceira, Tavares (Chãs; Várzea e Travanca), Mangualde, Viseu, Portugal
Data Identifiers
Mindat Occurrence Record ID:818741
Long-form Identifier:1:3:818741:3
GUID (UUID V4):0
Nearest other occurrences of Stewartite
10.3km (6.4 miles) ⓘRegada, Cubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
10.7km (6.6 miles) ⓘCubos-Mesquitela-Mangualde area, Mangualde (Mesquitela e Cunha Alta), Mangualde, Viseu, Portugal
17.7km (11.0 miles) ⓘSítio do Castelo Mine, Folgosinho, Gouveia, Guarda, Portugal
36.0km (22.4 miles) ⓘVela Nordeste quarry, Vela, Guarda, Guarda, Portugal
43.6km (27.1 miles) ⓘBendada Mines, Bendada, Sabugal, Guarda, Portugal
43.6km (27.1 miles) ⓘFonte da Cal Mine, Bendada Mines, Bendada, Sabugal, Guarda, Portugal
90.9km (56.5 miles) ⓘMoreira de Jales, Alfarela de Jales, Vila Pouca de Aguiar, Vila Real, Portugal
References
Nunes, Rui (n.d.) Personal communication.
 
and/or  
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