here is easy but best composition to make an aluminum oxide (alumina) cruicble that has good thermal shock resistance...when you start recovering gold from electronics and other sources you mostly focus on best method to not loose any gold in chemical processing and achieve high efficiency but believe me crucible is most important part of gold recovering, a bad cruicble can easily ruine all of your work and time you spend...so choose you cruicble wisely.
to make this cruicble you just need:
-50 grams of aluminum oxide
-35 grams of clay
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#cruicble
#aluminiumoxide
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🎶 by Coma-Media from Pixabay 🎶