Calcite with Duftite

An early purchase of mine that just popped out of my display case due to a lack of oxygen. Hundreds of opaque , sharp rhombohedrons aesthetically piled up with a selective deposition of duftite on the back and one side.  A sculptural piece that would enhance any calcite or Tsumeb suite! Ex me.

Locality: Tsumeb Mine, Tsumeb, Namibia

Composition: calcium carbonate