Minerals described in 1877

Spherocobaltite or sphaerocobaltite is the mineral form of Cobalt(II) carbonate (). It is a cobalt bearing member of the calcite group of carbonate minerals, crystallizing in the trigonal crystal system. Rare specimens of pure spherocobaltite typically show a rose-red color, but the color range of impure specimens extends to shades of pink and pale brown.

Coloradoite, also known as mercury telluride (HgTe), is a rare telluride ore associated with metallic deposit (especially gold and silver). Gold usually occurs within tellurides, such as coloradoite, as a high-finess native metal.

Ludlamite is a rare phosphate mineral with chemical formula . It was first described in 1877 for an occurrence in Wheal Jane mine in Cornwall, England and named for English mineralogist Henry Ludlam (1824–1880).