A very beautiful and highly unusual example of stalactitic chalcedony from the "bamboo agate" locality.  Most are yellow to colorless, but this one has a very interesting patchy appearance, caused by the deposition of multiple laters of chalcedony.  If you look at it from the back/ side, you can see that the first 3-4 mm layer imparted the red coloration, then the white and yellow were present in a subsequent overgrowth.  Ether way, it's really pretty and quite unusual.