Ceria

Ceria CeO₂ supposedly has an especially good lattice scaled stiffness.
Big lattice constant reasonably high stiffness.
Cerium is one of the most common rare earth elements.

Related

• In solvent synthesizable gemstone-like compounds
• Gemstone-like compound

External links

Wikipedia:

• Cerium(IV)_oxide
• Cerianite-(Ce) – (on www.mineralienatlas.de) – cubic
• Same stoichiometry and structure: Thorianite Uraninite
• Off-topic: Dyrnaesite-(La)