Moreover quartz, the opposite substances that exhibit the piezoelectric effect are Rochelle salt and tourmaline. Rochelle salt displays the greatest piezoelectric impact, but its purposes are restricted to manufacture of microphones, headsets and loudspeakers. It is actually since the Rochelle salt is mechanically the weakest and strongly impacted by moisture https://crystaloscillator84062.like-blogs.com/34726951/consumer-electronics-crystal-oscillators-for-dummies