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Calcite after Ikaite

Ikaite is a highly hydrated calcium carbonate with limited stability. It forms at temperatures near freezing in alkaline lakes, and converts to calcite on heating to room temperature (Bischoff, 1993). The fresh mineral was first noticed at Ika Fjord, Greenland, from which the mineral takes its name (Pauly, 1963). Nevertheless, pseudomorphs after ikaite had been recorded since 1878 (i.e. thinolite, glendonite). This is a crystal cluster, with individuals to 2.0 cm. This specimen was part of the Charles Trantham (1936-2020) estate and carries labels from Jeanne Mager and Tyson's.

Price: $50

Item code: MS1772

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