An extraordinary "snake" of cavansite clusters runs from top to bottom of the quartz-covered matrix. The cavansites show the best peacock-blue color. A few isolated clusters appear elsewhere on the display face, along with a few stilbites. There must be some reason other than chance that the cavansite balls lined up this way, but I don't know what it is. You certainly don't see long chains of cav crystals like this very often, nor of such size! 13.4 x 7.2 x 6.5 cm