Chabazite, Quartz

Here is a different one! It is a large quartz geode that has a number of chabazite crystals in it, and in particular, a 32mm wide crystal, amongst others, right at the front. Interestingly, the large chabazite exhibits a patchy, bright yellowish-green fluorescence, while many of the smaller chabazite crystals are totally fluorescent. Different and interesting!