Home > Type Localities II – August 5 > MS1611 Callaghanite


Callaghanite is a copper magnesium carbonate. Beck & Burns (1954) named the species after Dr. Eugene "Pat" Callaghan (1904-1990), Director of the New Mexico Bureau of Mines. Fittingly, Dr. Callaghan specialized in magnesite deposits.

Callaghanite here forms a cobalt blue coverage on serpentine. This is a rich specimen, with a coverage area of 3 by 2 cm. In this specimen, the callaghanite must have spanned both sides of a fracture surface, so that crystal forms are only visible on the edges of the coverage. This specimen was part of the Charles Trantham (1936-2020) estate.

Price: $75

Item code: MS1611

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