Lead zirconate titanate is a good piezo material:
That's nice. Lead zirconate titanate is also as chemically distinct from zircon, which is zirconium silicate, as sodium chloride is from sodium cyanide. Lead won't fit in a zirconium silicate crystal lattice, and sodium cyanide doesn't belong on your pretzels.
I think the lead is right in there with the zirconium as a chemical compound.
Of course it is, in
that chemical compound. PZT has a perovskite crystal lattice, zircon is tetragonal. PZT is man-made, zircon magma-made. They aren't the same.