My friend still has one piece of the Aquascene/Tyree piece that he got from me. I might get a little nubbin from it to see if I can repeat my experience from years ago.
I do have a chunk of a standard blue/white Australian wild echinata too, just got it recently at a stupid cheap price from AquaSD. It survived dips and quarantine and looks happy-ish but has a loooong way to go to be anything to marvel at :) They do still come in wild from Australia pretty regularly. Getting them to survive, grow, and be fragged and shared is a different thing entirely.