Descloizite     Berg Aukas, Grootfontein, Africa.  Ex. Harold L. Dibble collection.  A nice sized example with dolomite overgrowths.  7.2 x 4 x 4 cm with individual crystals to over 5 cm long (very large for the species).  It is a floater with very minor chips in a couple spots but in excellent condition overall.  Very high luster,  great form and very attractive for this material.   $495