| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Mexico > Acanthite pseudomorphs after Argentite |
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| DESCRIPTION: | No. 62444 |
| Mineral: | Acanthite pseudomorphs after Argentite |
| Locality: | Guanajuato Silver Mining District, Guanajuato, Mexico |
| Description: | Lustrous gray-metallic acanthite pseudomorphs after pseudo-cubo-octahedral argentite crystals. The argentite crystallized first but is stable only above 179° C. It altered to acanthite when it cooled below that temperature resulting in pseudomorphs. Ex. W. Frech (1913-1998) collection #629 |
| Overall Size: | 20x16x15 mm |
| Crystals: | 1-14 mm pseudos |
| Archived: | For reference only |
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