| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Mexico > Acanthite pseudomorphs after Argentite |
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| DESCRIPTION: | No. 61201 |
| 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 7 mm. The argentite crystallized first but is stable only above 179° C. It altered to acanthite when it cooled below that temperature resulting in pseudomorphs. |
| Overall Size: | 21x15x11 mm |
| Crystals: | 1-7 mm pseudos |
| Archived: | For reference only |
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