This is simply a placeholder page while I collect data. This mineral was just recently discovered on Luna so there’s not much info on it.
Composition – CaAl4Si2O11 
Found in the feldspatic lunar meteorite Oued Awlitis 001 
High-pressure Ca-Al-silicate 
“On the Moon, donwilhelmsite can form from the primordial feldspathic crust during impact cratering events.” 
- Donwilhelmsite, [CaAl4Si2O11], a new lunar high-pressure Ca-Al-silicate with relevance for subducted terrestrial sediments (https://pubs.geoscienceworld.org/msa/ammin/article-abstract/105/11/1704/592180/Donwilhelmsite-CaAl4Si2O11-a-new-lunar-high?redirectedFrom=fulltext)