Home > Copper Minerals I – May 5 > MS1059 Lavendulan

Lavendulan - Sold


Lavendulan is a complex copper arsenate mineral named for its color (Breithaupt, 1837). Lavendulan dehydrates on powdering, which has created some confusion about its X-ray diffraction pattern; a high quality structure solution by Giester et al. (2007) established the current formula for the species. This specimen comes from a prolific district of arsenic and cobalt rich minerals, Bou Azzer, the subject of a 2007 special issue of the Mineralogical Record. Here lavendulan forms chalky aggregates and puffballs on contrasting pale pink dolomite crystals. Attractive specimen!