I've found a couple images as references to show what I mean by rockier looking.
http://www.chinatravelca.com/wp-content/uploads/Shilin-jagged-rocks-Anna-Qin.jpg
http://upload.wikimedia.org/wikipedia/commons/b/b4/Rocks_on_Warren_Gutter_Beach_-_geograph.org.uk_-_414672.jpg
http://home.earthlink.net/~roales/Vesuvius3.jpg
http://upload.wikimedia.org/wikipedia/commons/d/dc/MSH82_st_helens_plume_from_harrys_ridge_05-19-82.jpg
If anyone could make a couple meshes I'd be grateful. I'm currently using some retextured (and slightly tweaked) Bloodmoon rocks to fit my needs. Some diversity would be very welcome.