Home > Copper Minerals II – September 8 > MS1121 Calumetite on Copper

Calumetite on Copper - Sold

Calumetite is a copper chloride, originally described by Williams (1983). This is a breccia fragment cemented by native copper, which has one surface covered in a blue crust of calumetite. The crust is continuous and smooth, showing no crystal forms. The mineral is water soluble. Good type locality sample.

This specimen was part of the personal collection of Ralph Merrill, proprietor of the prolific mail order business Minerals Unlimited. Merrill obtained this piece from Sid Williams, who described of the mineral. Merrill's collection card and label ship with the specimen.