Can you identify these rocks for me, please?

Question

So I have been collecting these rocks for years and years. I have been calling them agates. I thought they were, but it turns out they aren't. They are clear, kind of translucent rocks that catch my eye on the side of the road. They can come in all different colors, but still have the same translucent color.I'll be walking and see it stand out against the others. I have some pictures on this website. Please scroll down to the bottom and look at the pictures. I don't know if the rocks are special but badly want to know their name. ( Don't look at the other things along the website. I made it a longggg time ago. Now I just use it to put up pictures I ask about, such as these pictures)

http://www.annabanana12985.piczo.com/?cr=2

Answer 1

I got the impression of quartz...but your pictures are not to detailed on the stones.