What kind of rock is this

[Leonar]

Can anyone help me identify this rock

 

[Jason in Enid]

quartz

 

[Leonar]

Why is that

 

[smokeythecat]

It is a cool looking piece of quartz - silicon dioxide, the most common mineral on earth. Your is cool, as it was put down in solution it seems, the quartz was molten and cooled in this fashion. The color, texture and the way light hit it give it away.