I have randomly generated 200 ages all of them from blank books (I have not written anything). In all of this time, about 2 days worth of trying, I have never seen the dense ores symbol! I am using Technic Pack 7.2.6. This issue is extremely frustrating as it seems that is the only symbol I cant get. So much wasted time I could have mined hundreds of resources in the time I have spent chasing this elusive pipe dream. Any and all help would be greatly appreciated.