Apart from quartz, another substances that show the piezoelectric outcome are Rochelle salt and tourmaline. Rochelle salt reveals the greatest piezoelectric result, but its programs are limited to manufacture of microphones, headsets and loudspeakers. It is actually as the Rochelle salt is mechanically the weakest and strongly impacted by moisture https://consumerelectronicscrysta26037.bloggin-ads.com/58179476/the-smart-trick-of-consumer-electronics-crystal-oscillators-that-nobody-is-discussing