A concave matrix face hosts abundant, deep green atacamite microcrystal clusters, associated with moderately abundant, water clear gypsum crystals (variety selenite) which reach about 3 mm. Some of the gypsum crystals have atacamite inclusions. Also present are microcrystalline quartz 'stalactites' also reaching about 3 mm. Nice under magnification. Excellent condition. Self standing and very displayable.