PETROGRAPHY OF LAMPROITES FROM THE VILLAGE MRZEN, NORTH MACEDONIA.

The paper presents detailed petrographic research using optical microscopy on lamproite rocks around the village of Mrzen, North Macedonia. Detailed microscopic examinations of 5 specimens show that the rocks have typical porphyritic structures and in some places they also show sub-rounded textures with cavities filled with secondary calcite. Phenocrystals that have idiomorphic forms are represented by olivine, clinopyroxene, orthopyroxene, plagioclase, and magnetite. In some places there are changes - alterations in phenocrystals that are represented by iddingsite, smectite-chlorite-goethite), clay and/or zeolites, and calcite. Microscopic examination shows that they are lamproites. [ABSTRACT FROM AUTHOR]