Special items for clan skills

Are the special items necessary for the clan skills dropped by the same raid bosses you get reputation points from?

The raid bosses from the clan quest, I mean.

Or is there other specific raid bosses to get them from?

I know for a fact cabrio drops a destruction tombstone. The raid boss quest you get from aden gets you rep points, but maybe you'll get lucky and drop other clan skill items.

Are the special items necessary for the clan skills dropped by the same raid bosses you get reputation points from?
Strickly said, no. Clan reputation quest has nothing to do with Life Ore items (those you need for clan skills). Every boss drops some Life Ore from time to time, you don't have to concentrate on clan reputation bosses only.
Though to get appropriate item you should kill relatively high level bosses - items of a grade are needed for most clan skills (Destruction Tombstone is an exception).

I see. Thank you for your answers. :)

Our clan is going to do the raid for reputation points this weekend so we were wondering about that.