Allargentum and Silver pseudomorph after Dyscrasite
Unknown Owner
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Spectacular, dendritic growth on a natural pedestal of contrasting calcite, of allargentum and silver. These two species have pseudomorphed dyscrasite (X-RAY and RAMAN run on multiple samples confirm that these crystals are a zoned mix of both). The crystals are lustrous and vary from dark gray to silver, in color. The largest crystal is a spinel twin and reaches 4 cm in length. Allargentum is a rare silver antimonide and this is one of the best finds for the species (2015). This specimen came at the tail end of the find, by the way - earlier specimens were more crudely crystallized, and only a relative handful at the end seemed to have this kind of quality and sharpness to them - to me, these are therefore the ones to truly value! Direct from the source, I was luckily the first to see some of these when they came out of acid from removing the overlaying massive calcite.
Product details
SpeciesSilver, Dyscrasite
SizeMiniature
Dimensions5.0 x 4.7 x 1.5 cm
Added on10/23/2024
LocalityMorocco, Drâa-Tafilalet Region, Bouismas
Known provenance
| Date | Collector | Acquisition price |
|---|---|---|
| 08/2024 | Unknown Owner | Not disclosed |
| — | The Arkenstone | Not disclosed |
Learn more
Mineral guide
Learn about Silver
native silver with wire, leaf, and dendritic forms, bright luster and patina; prized for rare isometric crystals and iconic localities in collections.Regional guide
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