Programming with Quartz: 2D and PDF Graphics in Mac OS X (The Morgan Kaufmann Series in Computer Graphics): Gelphman, David, Laden, Bunny, Schneider, Philip: 9780123694737: Amazon.com: Books
The quartz program supports a drug-free sport.
Smoky Quartz Points - IGM
Lemurian Quartz: Meaning, Healing Properties, and Powers
Clear Quartz: Chakras, Time to Work With and Programming - Healingcrystals.com - Crystal Recommendations - Information About Crystals As A Healing Tool