crushed laterite (can laterite be crushed??) just get some gravel you think has a good color and it can be crushed and get a hammer or somethign and sit there and crush them, or try a google search for them
Thanks Balloon. That sounds like a lot of work but its an option. I did find some info on this stuff called 3M Color Quartz. It comes in all kinds of colors. I'm just waiting to find out if theres a distributor in my area.