The magic of crystal formation had already been done by natural processes; all that was needed was a little slicing and dicing. As it turns out, though, quartz is so immensely useful for a ...

A slice of quartz ground to a prescribed thickness that vibrates at a steady frequency when stimulated by electricity. The tiny crystal, about 1/20th by 1/5th of an inch, creates the computer's ...

Some are crystal clear, others of smoky or colored quartz. Some are actual human size and of very fine detail, while others are smaller and less refined. All are believed to originate from Mexico ...