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Acanthite pseudomorphs after Argentite from San Juan de Rayas Mine, Guanajuato, Mexico

 
Acanthite pseudomorphs after Argentite from San Juan de Rayas Mine, Guanajuato, Mexico

Acanthite pseudomorphs after Argentite from San Juan de Rayas Mine, Guanajuato, Mexico

DESCRIPTION:No. 63231
Mineral:Acanthite pseudomorphs after Argentite
Locality:San Juan de Rayas Mine, Guanajuato, Mexico
Description:Sharp, well crystallized silver-metallic acanthite pseudomorphs after argentite crystals to 5 mm. The argentite crystallized first, but is stable only above 179 C, and altered to acanthite when it cooled below that temperature resulting in pseudomorphs.
Overall Size:20x12x8 mm
Crystals:1-5 mm pseudos
Status: For reference only
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