2893 Chalconatronite, Carr Boyd Rocks Ni mine (Carr Boyd Ni mine), Menangina Station, Menzies Shire, Western Australia

Measuring 2×1.9x1cm and with its red arrow pointing to the chalconatronite, this specimen would seem like a micromount. The red arrow, however, is unnecessary, as the rare carbonate chalconatronite covers a sizeable portion of the specimen and is more than apparent without any magnification. Notwithstanding, about 30x is required to appreciate that the chalconatronite is crystalline. This specimen was previously owned, presumably in conjunction with research, by the American Museum of Natural History.

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