Repost: Perovskite is found just west of Montreal in the Oka Complex; Carbonate-rich, silica-poor magma emplaced in the Cretaceous. The site was mined for niobium in the 1960's and 1970's -it's also enriched in REEs and thorium.

There’s more about perovsite at Oka on MinDat:
https://www.mindat.org/locentries.php?p=14009&m=3166
a non-profit mineral data base founded in 2000 by Jolyon Ralph.

#MinCup25 #Perovskite #Oka #Carbonatite #Quebec #Canada #niobium

À la découverte d’un volcan très spécial, le Kaiserstuhl
https://www.futura-sciences.com/planete/actualites/geologie-decouverte-volcan-tres-special-kaiserstuhl-99701/ - Morgane Gillard

#Géologie #Volcan #Allemagne #kaiserstuhl #carbonatite #calcite #lave #magma