I think he is referring to a lightsaber where the actual hilt was made out of yorik coral, and not just replacing a crystal with a lambent... The only possible advantage I could see would be not rusting...lol Otherwise, its the blade that counts, not the hilt...
Yep, http://starwars.wikia.com/wiki/One_Sith toward the bottom of the first paragraph. I was thinking that they could heal themselves also. But could they somehow be telepathic?
I think the loyal Imperial is right, it's just a stylized hilt as opposed to being grown out of yorik coral.
As near as I can figure it, Yorik Coral would be a living alloy, so it would be more of the hilt rather than the blade itself. If it's a living alloy, then it should be capable of self-reparation, as I would guess that it has some remarkable regenerative abilities.
Yorik coral was the primary shipbuilding material of the Yuuzhan Vong. It was grown on-planet in the form of a ship, and later symbiotic creatures were implanted or grown within it to perform the ship's functions. It would absorb the material it was grown on (rock, unrefined ores, or occasionally wreckage of enemy bunkers or buildings) but also required organic material. In a completed ship, the yorik coral was run through with the nervous system that controlled and coordinated the various biots, as well as a circulatory system that sustained them. Thus, if the yorik coral of a ship sustained enough damage, it would cut off control and sustenance to all of the various subsystems, resulting in loss of efficiency and then total failure. Yorik coral was also used to create missiles used in planetary bombardment. Five years after the end of the war between the Galactic Alliance and the Yuuzhan Vong, it was used as decoration in Unity Green park on Coruscant created as part of a peace treaty between the two. It also continued to grow unchecked in the Coruscant Undercity. That was all that i could find on the Yorik Coral. There is nothing that mentions the saber hilts made of Yorik Coral. But that still dosn't meen that they are not.