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Paraná Department, Entre Ríos, Argentina

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Detailed Mineral List:

Opal
Formula:	SiO₂ · nH₂O
Reference:	Raúl Jorge Tauber Larry (1967). Visita al arroyo Espinillo en la Provincia de Entre Ríos.
Localities:	Recorded from at least 1 other locality in this region.





Photo: Opal from Arroyo Espinillo, Paraná Department, Entre Ríos, Argentina
Opal var: Wood Opal
Reference:	Raúl Jorge Tauber Larry (1967). Visita al arroyo Espinillo en la Provincia de Entre Ríos.
Localities:	Recorded from at least 1 other locality in this region.






Photo: Wood Opal from Arroyo Espinillo, Paraná Department, Entre Ríos, Argentina
Quartz var: Agate
Formula:	SiO₂
Reference:	Raúl Jorge Tauber Larry (1967). Visita al arroyo Espinillo en la Provincia de Entre Ríos.
Localities:	Recorded from at least 1 other locality in this region.





Photo: Agate from Arroyo Espinillo, Paraná Department, Entre Ríos, Argentina
Quartz var: Chalcedony
Reference:	Raúl Jorge Tauber Larry (1967). Visita al arroyo Espinillo en la Provincia de Entre Ríos.
Localities:	Recorded from at least 1 other locality in this region.






Photo: Chalcedony from Arroyo Espinillo, Paraná Department, Entre Ríos, Argentina
Quartz var: Jasper
Reference:	Raúl Jorge Tauber Larry (1967). Visita al arroyo Espinillo en la Provincia de Entre Ríos.
Localities:	Recorded from at least 1 other locality in this region.






Photo: Jasper from Arroyo Espinillo, Paraná Department, Entre Ríos, Argentina

5 entries listed. 1 valid mineral.

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