me and my friend have a neckless and we know whats hers means and does, but we don't know anything about mine except that its white quartz. so can somebody tell me, and give a website where i can get more info on it, please? thank you
There is no magical number that relates to the type of material. Quartz can be designed to resonate at many different frequencies. The mechanical construction of the crystal, how its cut, its size, etc. determine its resonant frequency. Therefore you can arbitrarily design a crystal for any frequency. There are common frequencies out there in electronics that are merely standards. Like 32.768 kHz. Frequencies like these are just universal and can be divided down easily in digital circuits to keep track of time for instance. That frequency is very popular and is used in all sorts of clocks, watches, computers, cell phones, etc. Anywhere where time needs to be kept. Other popular crystal frequencies are 10 MHz, 13 MHz, 26 MHz, 15.34 MHz, 19.4 MHz. Regarding resonance in general, anything can vibrate. It is mostly dictated by the shape of the material, how it is excited, and what the energy absorption properties of the material are. Resonance typically implies that the characteristics of the object are designed (intentionally or unintentionally) to provide ease of oscillation at certain frequencies. Tuning forks and guitar strings have specific length are held at a certain tension. So when excited, they vibrate at the frequency they were designed to. Ultimately the energy dissipates and you have to pluck the string again. Like pushing a kid on a swing. if you line your pushes up with when the kid comes to the peak of the swing, you can get higher and higher swings. If you get a fat kid on the swing you'll have to change the rate at which you will push, or push with a higher energy.
Very few minerals vibrate when you pass a current through them. Quartz is a piezoelectric mineral (will vibrate when you pass a current through it, or will produce a current under pressure), try searching for that term
