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From a unique find in 2016 near an abandoned copper mine, was a lake that had formed with dissolution of tailings. Salammoniac is an evaporate mineral, so conditions had to be just right for them to be stable. They are a rich robins egg blue and have been tested. They were stabilized after collection with a sealant.
Locality: Coronel Manuel Rodriguez Mine, Mejillones, Antofagasta Region Chile
Dimensions: 3.4 x 3.3 x 2.1 cm
Composition: Aluminum Chloride