Description
A fine example with crystals of the copper-antimony sulfide Chalcostibite that have been partially replaced by bright blue Azurite, a phenomenon peculiar to this locality near Casablanca. There is unusually good crystal definition for this type of specimen, on this piece. Luster and striation are great for the locale and the piece comes with a fine old Maucher label, describes the species as Wolfsbergite.