1. THE CHARACTERISTICS OF QUARTZ CONCENTRATE OBTAINED BY THE FLOTATION OF THE QUARTZO-FELDSPATIC RAW MATERIAL FROM BEDECIU DEPOSIT (CLUJ DISTRICT, ROMANIA). Authors: MARIA GOREA, CRISTINA MARIŞ.2. DATE NOI PRIVIND COMPOZIŢIA MINERALOGICĂ A SILTULUI LUTITIC DE LA DUMBRAVA, JUDEŢUL CLUJ. Authors: LUCREŢIA GHERGARI, CORINA IONESCU, CRISTINA MARIŞ.3. PETROLOGY AND GEOCHEMISTRY OF THE MUNTELE MARE GRANITOID (NORTHERN APUSENI MOUNTAINS), ROMANIA. Authors: LUCREŢIA GHERGARI, CRISTINA MARIŞ.