The basics on Crystals

There is a book in my house about crystals, tells you what their for and stuff. Thanks for the links though.

Useful information about Quartz Crystals

http://www.neatstuff.net/avalon/
http://www.peacefulmind.com/stones.htm
http://www.crystalcavern.com/
http://www.crystalinks.com/gemstones.html
http://www.bestcrystals.com/crystals2.html

These are the best 5 websites I have found in my research for Quartz Crystal properties!
I hope these links will help you learn more about Crystals and their use.