Note: The mineral species Huantajayite is not listed in our database for this locality. This specimen may be misidentified or the mindat list of minerals at this locality may be incomplete.
9.5 x 5.6 x 5.4 cm. Huantajayite was once a valid species, now shown to be a variety of argentian (silver-rich) halite which leaves a milky-white suspension of AgCl when dissolved in water. However, for a time, it was quite the novelty and this served as the type locality for the valuable rarity. The halite here is embedded in lightweight copper-rich matrix. Ex. Academy of Natural Sciences Philadelphia Collection.
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Photo added: 17th Dec 2008