A recent xkcd comic joked that a time traveller in the early 18th century could probably bribe someone with a roll of aluminium foil. How valuable was aluminium in East Prussia ca. 1736? Was aluminium seen as having any practical function, or simply a rare curiosity? : AskHistorians
https://www.reddit.com/r/AskHistorians/comments/ypsjis/a_recent_xkcd_comic_joked_that_a_time_traveller/Aluminum Is Intricately Associated with the Neuropathology of Familial Alzheimer’s Disease | IOS Press
https://www.iospress.nl/ios_news/aluminum-is-intricately-associated-with-the-neuropathology-of-familial-alzheimers-disease/Ask a gemologist! ALEXANDRITE : Gemstones
https://www.reddit.com/r/Gemstones/comments/w31orb/ask_a_gemologist_alexandrite/Chronic exposure to aluminum and risk of Alzheimer's disease: A meta-analysis - PubMed
https://pubmed.ncbi.nlm.nih.gov/26592479/Floodwater Backflow,Mushroom Cloud in Dengfeng City, Henan - YouTube
https://www.youtube.com/watch?v=piY0hhwkkjkIs the Aluminum Hypothesis Dead?
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4131942/