Chalcedony (Var: Agate)
Rancho Coyamito, Sierra del Gallego, Ahumada Municipality, Chihuahua, Mexico
Rancho Coyamito (La Fortuna Claim), Sierra del Gallego, Ahumada Municipality, Chihuahua, Mexico
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Agate showing replacement of aragonite crystal. 8 x 10 cm Specimen from the Norte (North) locality.
- 15th March 2009
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