
Originally Posted by
Aerostar's Battle Mechanics Guide
For generic humans, the color of the crystal is an indicator of the
unit's palette:
Ramza's units (palette 00) ............ teal-gray crystal
Hokuten units (palette 01) ............ bright blue crystal
Nanten units (palette 02) ............. red crystal
Death Corps units (palette 03) ........ yellow crystal
Glabados Church units (palette 04) .... purplish-gray crystal
Special humans and humanoid monsters will always drop teal-gray crystals,
regardless of their palette byte (although the poof of smoke that
accompanies crystal formation will be colored by the palette byte).
Standard monsters' crystal color is determined by the unit's 'tier' within
its species.
Tier 1 monsters (Chocobo, Goblin, etc.) ................ teal-gray crystal
Tier 2 monsters (Black Chocobo, Black Goblin, etc.) .... bright blue crystal
Tier 3 monsters (Red Chocobo, Gobbledeguck, etc.) ...... red crystal