FASCINATING! This is a fine quartz crystal, actually with a clearly visible phantom inside it - and right above the phantom, in the clear, gemmy area of the quartz, float these bright yellow crystals of the rare manganese-beryllium silicate helvite! Little ding on top the quartz, but hardly matters since this specimen is not about the quality of the quartz crystal anyway except insofar as it has good clarity so you can really get a good view of the helvites.