Here is the full list of all 18 FRACT OSC achievements.
Remember my song
A potent kit indeed
Power User
More choices ahead
A vital dam plunge
Commited to a wave
Modulation memory
Fly through the wreckage
A crystal crevasse
A high mountain vault
Fly behind the mountain
A crystal den
All the choir is here
A brave basin drop
Fly over the dig
A forgotten dig site
A telling dead end
A dome from the past