Beautiful association of shiny black ilvait crystals accompanied by columnar calcite and well-developed quartz on fibrous hedenbergite.
This mineralogical sample is typical of the Dalnegorsk mines in the Russian Far East.
This mining complex is also known for its fluorites, calcites and hematoid quartz.
This specimen comes from the Hubin collection in Neupré, Belgium.
Video of this ilvaite, hedenbergite, calcite and quartz specimen from Dalnegorsk, Russia: