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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Vivianite from
Valdarcas Mine, Covas, Vila Nova de Cerveira, Viana do Castelo, Portugal


08573560017368374049761.jpg
Vivianite, etc.

Valdarcas Mine, Covas, Vila Nova de Cerveira, Viana do Castelo, Portugal
08573560017368374049761.jpg
Vivianite, etc.

Valdarcas Mine, Covas, Vila Nova de Cerveira, Viana do Castelo, Portugal
08573560017368374049761.jpg
Vivianite, etc.

Valdarcas Mine, Covas, Vila Nova de Cerveira, Viana do Castelo, Portugal
Locality type:Mine
Classification
Species:Vivianite
Formula:Fe2+Fe22+(PO4)2 · 8H2O
Habit:Prismatic
Colour:deep blue
Quality for species:Excellent - world class for species or very significant. (!!)
Abundance at site:Very Rare
Confirmation
Validity:Confirmed
Confirmation Methods:Optical Analysis
Associated Minerals Based on Photo Data:
Siderite1
Data
Mineral Data:Click here to view Vivianite data
Locality Data:Click here to view Valdarcas Mine, Covas, Vila Nova de Cerveira, Viana do Castelo, Portugal
Data Identifiers
Mindat Occurrence Record ID:776829
Long-form Identifier:1:3:776829:3
GUID (UUID V4):0
Nearest other occurrences of Vivianite
0.8km (0.5 miles) ⓘCerdeirinha Mine, Arga de Baixo, Caminha, Viana do Castelo, Portugal
30.0km (18.6 miles) ⓘPedra da Moura Mine, Touvedo (São Lourenço e Salvador), Ponte da Barca, Viana do Castelo, Portugal
31.2km (19.4 miles) ⓘSanta Marina Mine, Galiñeiro Complex, Vincios, Gondomar, Pontevedra, Galicia, Spain
76.9km (47.8 miles) ⓘSeixoso Mine, Seixoso Mining Field, Borba de Godim, Vila Cova da Lixa e Borba de Godim, Felgueiras, Porto, Portugal
77.8km (48.4 miles) ⓘPresqueira pegmatite, Forcarei South pegmatite field, Forcarei, Pontevedra, Galicia, Spain
84.4km (52.4 miles) ⓘVieiros Mines, Rebordelo, Amarante, Porto, Portugal
References
Alves, Pedro (n.d.) Personal communication.
 
and/or  
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