I'm inclined to think the mesh bags are Peltier. We know Peltier used the name Marine Crystals. We know other companies had other names for clearies. So until I get more info I'll guess the Pre-MK "Marine Crystals" were all Pelt. (Do they have a Pelt structure under blacklight?)
MK using the name later even makes some sense because of the connection between Peltier and Berry Pink.
P.s., when I say "are Peltier", I'm not ruling out jobbering -- Berry Pink jobbered Pelts.