> Quartz. Number seven on the hardness scale. People who study minerals rate their hardness on a scale of 1 to 10 with talc being the softest and rated one, while diamond is the hardest and rated ten. So you can see, quartz is a really hard mineral. Ordinary window glass is about 5.5, so you can scratch your name into a window pane with a quartz crystal. Make sure it's your window.
> Howard

Actually, the "Quartz" is supposed to be short for "Rosequartz", one of my favorite minerals (it's pretty). I get tired of writing Rosequartz all the time, and besides it doesn't start with a Q!

Quartz...or SNAPDRAGON?