The lava one, I’ve copied from the internet. The iron texture was a lucky accident … (can happen…)
The pearly one, is more a balloon set-up. Just experimenting with layer-weight and this is what I got.
Happy downloading shared-examples.zip (2.9 MB)
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I just downloaded your materials thank you for letting us now the process and you must be using a pretty advanced computer to render that stuff!!
No! Just a lot of patience … 
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