Rocks of this class also occur in Brazil (Serra de Tingua) containing sodalite and often much augite, in the western Sahara and Cape Verde Islands; also at Zwarte Koppies in the Transvaal, Madagascar, São Paulo in Brazil, Paisano Pass in West Texas and Montreal, Canada.
Historically it was mined from deposits associated with dunites in North Carolina, USA and from a nepheline syenite in Craigmont, Ontario.
The railway is now run by Canadian Pacific as Kawartha Lakes Railway and its activity today consists of transporting nepheline syenite and crushed basalt rock from two mines north of Havelock operated by Unimin.