Crystal Healing

Hello. Here is an image of a crystal that I was given as a gift. I have no information about the item, I initially labeled it as quartz, but I examined the crystal structure and it does not seem consistent with a quartz pattern. It is possible that this is a synthetic crystal; I really have no idea.

Here is a link to an image of it:

http://img201.imageshack.us/img201/5024/dsc01242da9.jpg

http://img201.imageshack.us/img201/3964/dsc01241uz9.jpg

http://img244.imageshack.us/img244/2791/dsc01240sa9.jpg

http://img213.imageshack.us/img213/4179/dsc01243nn4.jpg

Thanks to anyone who has a good guess!