An OLD-TIME and showy specimen of bubbly, botryoidal pseudomalachite on gossan matrix from a CLASSIC Russian locality - Nihzne Tagilsk, Urals Region. This material was originally named tagalite in 1846, but later determined to be pseudomalacite. Accompanied by an OLD American Museum of Natural History label. A historic and highly representative old-timer. Ex. George Elling Collection.