I have been just using chlorine and lead as you have in the last step, I have them in abundance with no need(yet) to synthesize it from lower chemicals. I would look for a way to get salt(NaCl) to get chlorine(netherwart comes to mind).
**edit** oh, I just looked and you get chlorine from cobble in the decomposer, so there should be no real reason to synthesize anything leading up to chlorine, cobble should directly provide everything needed for einsteinium.
A side note/question. What is the easiest to obtain blast resistant block that can withstand a meteorite impact? I want to build a mob grinder but not have it blasted full of holes all the time.
**edit** oh, I just looked and you get chlorine from cobble in the decomposer, so there should be no real reason to synthesize anything leading up to chlorine, cobble should directly provide everything needed for einsteinium.
A side note/question. What is the easiest to obtain blast resistant block that can withstand a meteorite impact? I want to build a mob grinder but not have it blasted full of holes all the time.
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