Fog, that will probably need its own hak then.
2 more rocks below, each with 5 reskins.
Rar'd up, this puts the hak at around 20 meg. I'm going to split the rocks here into two haks and say this one is done. The 1st hak will contain about 47 rocks, the mine, buildings and Skull rock from page 7 of this thread, plus an updated placeables.2da for all the items in the hak as well as some of the ones that will appear in the other half. Expect a lot of "model not found errors" as is. The 2da also has all the entries from the previous EE haks as well.
This will work fine as is, but it can be considered version 1. As static they work fine, but for useable they don't have any destruct nodes set up and I had a problem making the use nodes work as well for some reason.
If someone with some more skills wants to take the hak and update it with the destruct and/or working use nodes, let me know and I'll send it your way before release. I'll wait a couple of days to see if I get a response and work on part 2 in the meantime.