Improvement for Ice Cave

Make lava in ice cave more real, it's almost unnatural to have lava inside the ice. Than I think is better add a more gradually transition between a lava lake and the ice of the caves, like stone/deep slate, calcite (or only calcite as layer of stones), maybe some block of source of water and only after the ice and compact ice and/or blue ice The same near the source of lava in the ice cave Also I think is cool to have, in the ice cave, some variation of ice between compact ice, blue ice and also some frozen water lakes. In that way the ice cave could have more realism and variation of colour at the same time