Evidently, the diffusion coefficient is delicate to impurities or structural concerns in the crystal, but That is still for being quantified. For our rough estimates of enough time at temperature required to take away the hydrogen from our samples, the hydrogen diffusion coefficient chosen is always that specified by Belonoshko https://www.tumblr.com/thegemjournal/759696203354128384/understanding-the-unique-characteristics-of-yellow?source=share