Description | Mimetite, Pb5(AsO4)3Cl (lead chloroarsenate), shares the same structure with apatite and occasionally crystals of the two will have similar shapes. Fortunately for identification purposes, mimetite does not form well shaped crystals often and especially of the green color. It usually is found as a botryoidal crust, a sparkling cauliflower aggregation or as minute spike-like crystals. |