Bartelkeite, (with Mimetite)

Bartelkeite


Composition: PbFe2+Ge6+(Ge4+2O7)(OH)2.H2O
Crystal System : Monoclinic
Colours: Colourless, pale-green
Lustre : Sub-adamantine
Hardness : 4
Specific Gravity : 4.97
Year of Discovery: 1979
IMA Number: 1979-029
IMA Status: Approved
Discovered By: Wolfgang Bartelke (German collector)
Named for: Discoverer
References: Keller et al. (1981a)