Abstract
The Anel Norte Lujauritic-Khibinitic Intrusive Body from the Poços de Caldas Alkaline Massif (MG-SP) is an important agpaitic occurrence in the massif. This intrusion is made up of five nepheline syenite petrographic facies (lujaurites and khibinites), whose mineralogy is constituted by alkali-feldspar, nepheline, pyroxenes (aegirine and aegirine-augite formed during different crystalliza…