The EU forums have some information on the recipe added last patch to Halaa, that allows jewelcrafters to create a rare quality Resilience gem. This recipe previously had an incredibly long respawn time, with rumors even having it as a one-time spawn per server reboot. This has now been hotfixed to be much shorter.
Vendors in Halaa now sell Mystic Dawnstone jewelcrafting recipe.
To access the thread, or see some of the previously announced hotfixes, head here.