Colorless micaceous britvinite, complex lead magnesium silicate borate carbonate oxide fluoride hydroxide (EDS proved all 'required' elements despite F), among black hausmannite and white calcite. The central hausmannite aggregate is 1.1 mm wide and the main, perpendicular-to-view britvinite blade aggregate is 1.2 mm long (when measured from SSW to NNE). Specimen obtained from Sonke Stolze mineral shop - thanks!
This photo has been shown 214 times