1. magenta crystal on alderean is mid level color (not +41 stat)
2. the magenta crystal on ilum is still there
3. a guild mate got the +41 schematic during a corellia daily
4. the schematic required the ilum crystal to craft
so bioware made a +41 stat magenta crystal schematic, which is better than the +32 schematic from the belsavis/hoth world bosses and they added lower grade schematics +25 and less that require the magenta crystal from alderean to craft.
so for bis alderean magenta crystal is a waste of time.
Would be interesting to see the material list for the schematic that your guild mate had drop?
From what I understand: current Magenta schematic (+33) that dropped from the Belsavis world boss requires the Ilum Magenta Adegan crystal. The new schematics (+41) ALSO require the Alderaan crystal which you need to refine into a "Pristine Adegan Crystal", though I could be wrong about that as I haven't seen the mat list for the new Magenta schematics.