Anyone interested in some cheap decorative rock or gravel in the Raleigh/Durham area? The Sunrock quarry in Butner sells a material called trap rock that should be ideal for aquarium purposes. Its some type of basalt from the research I've done. They sell all sizes of rip rap and fine gravel and screenings. I'm going to take a look at what products they have tomorrow and anybody interested can tag on with my order. The minimum order is 1 ton of any specific product, but we can pay for a ton and get less. I think they said a ton of rip rap was $28 and that should be the most expensive product, washed gravels will be less. I don't believe this material is available to the general public, but I work in heavy civil construction and have a hookup. At $28/tn you could easily decorate dozens of aquariums for practically nothing.