👉 The term "yttrialite" is not commonly used or recognized in the scientific community. It might be a typo, misspelling, or a term with a unique meaning or context that has been lost to history and terminology. If you're referring to some specific material or technology related to yttrium-90 (a radioactive isotopes), then it's possible that someone might have used this term in their research, but without more information, I'm unable to provide accurate clarification.