What Crystals are you drawn to?

I have always been drawn to and fascinated by crystals.  I couldn't tell you why, because I didn't know.  I just was.  Some of them pulled me in by their color, some by their shape, and, for those that know me well, by their glitter content.  Crystals make me happy.  I have a higher energy level, I feel more productive, I'm positive and I just seem to "vibrate" at a higher level.  Is this because of the crystals?  I can't answer that with certainty.  What I do know is that I've picked up rocks all my life and they just make me happy and being happy keeps my attitude positive and that spills out into every aspect of my life.  And that is good enough for me.