Apparently, the diffusion coefficient is sensitive to impurities or structural issues in the crystal, but That is still for being quantified. For our tough estimates of time at temperature necessary to take away the hydrogen from our samples, the hydrogen diffusion coefficient selected is the fact that supplied by Belonoshko https://www.tumblr.com/thegemjournal/759696203354128384/understanding-the-unique-characteristics-of-yellow?source=share