This is quite simply the finest specimen of Arkansas smithsonite that I have seen for my tastes. Not only does it feature the rather rare bright yellow color (brighter, in fact, than the pictures show), but the smithsonite balls are ISOLATED on MATRIX and are primary growths rather than replacements! It is such a far cry from the average "turkey fat" specimen (smithsonite ps. dolomite) that it is remarkable it comes from the same place. It is likely a very old piece. Pure smithsonite from this location is very rare - most specimens we see are actually smithsonite ps. dolomite, after all (be they crusts or crystals). If you have ever seen a better Arkansas smithsonite, I would like to hear about it! 7 x 4.3 x 2 cm