Chrystal graduated from Aberdeen in 1871 with first class honours in mathematics and natural philosophy, and received the Town's Gold Medal given to the best student of the year.
Chrystal nagtapos mula sa Aberdeen sa 1871 na may first class honours sa matematika at pilosopiya ng kalikasan, at natanggap ang Town's Gold medalya na ibinigay sa pinakamahusay na mag-aaral ng taon.