Bluish green large spherical crystal groups of Wavellite to 1.5cm across. This is large for Wavellite. Excellent color and luster. Ex. Art Smith - see prov. tab. I tried to get the color to match as closely as possible. Wavellite reacts to light sources differently much like pharmacosiderite. Under the sun it is a very nice, rich green. Whereas under incandescent and halogen lights it likes to change to a blue and and grey.