Havent found anything like this in section, so...
So far my gathering ended with luck of (1 hour run):
Rubedite Ore comes with every 3-5 nodes found
Rubedo Hide scraps from 5th "beast" monster
None of Ancestor or Ruby Ash have been found
Some screenshots as proof
And my doubt:
With that dendency, like voidstone/voidbloom/nighwoood, gathering vr15-vr16 mats gonna easymode, with one exception. However gaining Rubedo Hide would be just a suicide - counted in hundreds of slaughtered "innocent" animals. 10 hide scraps needed to refine (7-10 earned) and for vr16 130-150 of purifed Rubedo Leather: from 130 to 220 of Rubedo Hide/piece (whole set count like 940 - 1350). Addind drop rate and other vulturing players its more time-eating...
When PTS start again gonna dig for more "data".
Anyone else tested it?