Sidumine
Sidumine is a term that has appeared in speculative fiction and theoretical discussions to denote an imagined material with extraordinary properties. It is not a recognized mineral or compound in established scientific literature, and there is no consensus on a single real-world definition.
In fiction, Sidumine is typically depicted as a lightweight but exceptionally strong crystalline substance or alloy.
Manufacture and occurrence in stories vary: Sidumine is often said to form under extreme conditions—high pressure,
Scholarly and fan discussions treat Sidumine as a placeholder for discussing material science concepts such as