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Chalcedony from
Telhadela Mine, Ribeira de Fráguas, Albergaria-a-velha, Aveiro, Portugal

Locality type:Mine
Classification
Species:Quartz var: Chalcedony
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcedony data
Locality Data:Click here to view Telhadela Mine, Ribeira de Fráguas, Albergaria-a-velha, Aveiro, Portugal
Nearest other occurrences of Chalcedony
21.7km (13.5 miles) A Alto das Quelhas do Gestoso Mine, Gestoso, Manhouce, São Pedro do Sul, Viseu, Portugal
24.5km (15.2 miles) B Chãs Mines, Candal, São Pedro do Sul, Viseu, Portugal
69.1km (42.9 miles) C Póvoa de Cervães Mine, Póvoa de Cervães, Mangualde, Viseu, Portugal
90.8km (56.4 miles) D Macieira, Cerva, Ribeira de Pena, Vila Real, Portugal
110.2km (68.4 miles) E Bendada Mines, Bendada, Sabugal, Guarda, Portugal
126.6km (78.7 miles) F Golden deposits, Vila de Rei, Castelo Branco, Portugal
138.5km (86.0 miles) G Nazaré, Leiria, Portugal
141.2km (87.8 miles) H Alcobaça, Leiria, Portugal
149.5km (92.9 miles) I São Martinho do Porto, Alcobaça, Leiria, Portugal
158.5km (98.5 miles) J Horta da Fonte Água de Verão Mine, Nossa Senhora da Graça de Póvoa e Meadas, Castelo de Vide, Portalegre, Portugal
158.8km (98.7 miles) K Tapada da Misericórdia Mine, Nossa Senhora da Graça de Póvoa e Meadas, Castelo de Vide, Portalegre, Portugal
164.3km (102.1 miles) L Avarela quarry (Senhora da Luz quarry), Santa Maria, Óbidos, Leiria, Portugal
222.0km (137.9 miles) M Loures, Lisbon, Portugal
225.4km (140.1 miles) N Caneças, Odivelas, Lisbon, Portugal
230.6km (143.3 miles) O Moinhos da Galega, Falagueira, Amadora, Lisbon, Portugal
231.4km (143.8 miles) P Falagueira, Amadora, Lisbon, Portugal
Mineral and/or Locality  
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