A hill formed of a 5km-diameter Cretaceous alkaline igneous complex of eruptive and intrusive rocks, including carbonatite, alkaline gabbro, pyroxenite, aegirine syenite, phonolite, trachyte, sovite, fenite and foyaite.
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!