Given that the Death Star used Kyber Crystals in it's superlaser, and considering the
is it possible that this could explain the vastly larger size of the Death Star II in Return of the Jedi? Whereas part of this could be the whole Empire "Bigger is more intimidating" thing, they really didn't need anything larger than the first Death Star. Plus although the First Order were obviously overcompensating with the Skykiller Base, the first Death Star was capable of destroying a planet, so it's not like the superlaser needed to be bigger or more powerful to do the same job.
A reasonable assumption could be made that inferior crystals from other sources, or some artificially created alternatives, could have required a much larger main reactor and superlaser focusing system which would necessitate a larger hull.
destruction of the source of the Kyber Crystals on Jedha
is it possible that this could explain the vastly larger size of the Death Star II in Return of the Jedi? Whereas part of this could be the whole Empire "Bigger is more intimidating" thing, they really didn't need anything larger than the first Death Star. Plus although the First Order were obviously overcompensating with the Skykiller Base, the first Death Star was capable of destroying a planet, so it's not like the superlaser needed to be bigger or more powerful to do the same job.
A reasonable assumption could be made that inferior crystals from other sources, or some artificially created alternatives, could have required a much larger main reactor and superlaser focusing system which would necessitate a larger hull.