At the thermodynamic conditions of Titan's surface (90-94 K and 1.5 atm) HCN is a solid, while methane and ethane are liquids close to their triple points. The available thermal energy is small (kBT ≈ 0.8 kJ/mol), which largely limits thermally driven dynamical 75 processes to those governed by weak (predominately van der Waals, vdW) intermolecular interactions. These conditions combined with estimates of small molecule abundances have been used to argue for a cryogenic mineralogy in which the dynamic 80 formation and erosion of co-crystals help shape the landscape of Titan (3).