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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Chalcedony from
Horta da Fonte Água de Verão Mine, Nossa Senhora da Graça de Póvoa e Meadas, Castelo de Vide, Portalegre, Portugal


06395120017368742825468.jpg
Chalcedony, etc.

Horta da Fonte Água de Verão Mine, Nossa Senhora da Graça de Póvoa e Meadas, Castelo de Vide, Portalegre, Portugal
06395120017368742825468.jpg
Chalcedony, etc.

Horta da Fonte Água de Verão Mine, Nossa Senhora da Graça de Póvoa e Meadas, Castelo de Vide, Portalegre, Portugal
03424600017272326879029.jpg
Chalcedony, etc.

Horta da Fonte Água de Verão Mine, Nossa Senhora da Graça de Póvoa e Meadas, Castelo de Vide, Portalegre, Portugal
Locality type:Mine
Classification
Species:Quartz var: Chalcedony
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz1
Data
Mineral Data:Click here to view Chalcedony data
Locality Data:Click here to view Horta da Fonte Água de Verão Mine, Nossa Senhora da Graça de Póvoa e Meadas, Castelo de Vide, Portalegre, Portugal
Data Identifiers
Mindat Occurrence Record ID:890901
Long-form Identifier:1:3:890901:5
GUID (UUID V4):0
Nearest other occurrences of Chalcedony
1.4km (0.9 miles) ⓘTapada da Misericórdia Mine, Nossa Senhora da Graça de Póvoa e Meadas, Castelo de Vide, Portalegre, Portugal
50.5km (31.4 miles) ⓘGolden deposits, Vila de Rei, Vila de Rei, Castelo Branco, Portugal
84.1km (52.2 miles) ⓘCasal do Rei Mine, Pelmá, Alvaiázere, Leiria, Portugal
87.0km (54.0 miles) ⓘMiguel Vacas Mine, Nossa Senhora da Conceição e São Bartolomeu, Vila Viçosa, Évora, Portugal
99.4km (61.7 miles) ⓘBendada Mines, Bendada, Sabugal, Guarda, Portugal
References
LNEG - Laboratório Nacional de Energia e Geologia, Siorminp database
 
and/or  
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