title: Comparison of morphology of quartz crystals – “Marmarosh diamonds” – from Paleogene Flysch sequences of Krosno (Silesian) Zone, Dukla Zone in Ukrainian Carpathians, and Intra-Carpathian sequences of Western Carpathians
abstract: Quartz crystals of “Marmarosh diamonds” type were goniometrically studied in Ukrainian Carpathians from the veins in flysch deposits of Krosno (Silesian) unit (137 crystals, locality 1 – New Beskydy Tunnel) and the Oligocene sediments of the Dukla Zone (77 crystals; loc. 2 – Pryslip pass). They were compared with quartz crystals from intra-Carpathian Paleogene sequences of the Western Carpathians in Slovakia (175 crystals; loc. 3 – Šoltysa stream). The analysis of the obtained results allows to 
journal: Mineralia Slovaca