Nikitovka mercury mines produced about 30 thousand metric tons of mercury prior to shutdown of the operation in 1994 (mining had started in 1885).
Cinnabar-bearing ore zones include three thick (> 60 m) faulted sandstone horizons. Mercury is also dispersed within coal.
Refs.:
Möckel, S. & Frischmann, N. (1992): Mineralien der Quecksilberlagerstätte Nikitovka in der Ukraine. Mineralien-Welt, 3, 14-15. (in German)
http://gsa.confex.com/gsa/2004AM/finalprogram/abstract_79551.htm
55 entries listed. 51 valid minerals. 1 type locality (valid mineral).