Hi all! So i was surfing the web for interesting news, and I came across an article about a piezoelectric mat, where people can jump on it to create electricity. I got interested, and then I went to (guess where?) Wikipedia where I searched up piezoelectric crystals. The most common used were quartz and rochelle salt.... Anyways, long story short, I became curious about a small experiment I could try. If I hook up a quartz crystal to a voltmeter, (a regular quartz crystal like this one http://www-gems.com/catalog/images/white%20quartz%20crystals%20pic-3.JPG [Broken]), would the voltmeter register any voltage? Would a quartz crystal oscillator from an analog clock work as well? Thanks in advance!