The best crystal for overcoming any form of disorganisation. An excellent learning aid, organising  & processing information; increases concentration, helps to absorb new information & fascilitates quick thinking.
Fluorite also draws off negative energies & stress of all kinds. Effective against computer & electromagnetic stress, also helping to block geopathic stress when appropriately positioned. 
Emotionally provides a stabilising effect, teaching the importance of balance.
Each crystal  comes with a guide describing some of the main properties attributed to each one as detailed above.