A Neat Rock That I Found..........

There is a meme going around about how no one shares that they found a neat rock so I found a neat rock and am sharing. This one I found at the Long Beach flea in December so not quite like finding a rock in the field. Finding rocks in the field is like finding antiques and collectibles you have to know what you are looking for. And I don't know how to look for rocks so I find them after the person who found them finds them. .
Anyway there seems to be three different minerals/rocks here. Most is quartz, then there is some nice green colored rock and finally regular grey rock. The regular gray rock has little sparklies in it so perhaps not quite so regualar.
This has been cut into the size and shape of a doorstop at a bit over 4" long.