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