Star-like galena crystals from Stari Trg mine, Trepča, Kosovo (CROSBI ID 590422)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Žigovečki Gobac, Željka ; Zebec, Vladimir ; Mikulčić Pavlaković, Snježana ; Bermanec, Vladimir
engleski
Star-like galena crystals from Stari Trg mine, Trepča, Kosovo
Unusual six- and twelve-edged star-like galena crystals were found on a hand specimen from Stari Trg mine, Trepča, Kosovo and their morphology and way of growth were described. This twinned crystals look like spinel law twins, however detailed studies revealed different way of intergrowth twinning. The cause for this star-like morphological unit is oriented growth of galena with pyrrhotite according to epitaxial overgrowth galena (001)[100] || pyrrhotite (0001)[10-10], what produce secondary twinning of galena crystals during late crystallization. Galena crystals have three possible orientations on pyrrhotite. Each of the oriented galena individual must satisfy crystallographic condition, that one pair of opposite galena hexahedral faces (upper and lower part of the “star”) has to be parallel with basal pinacoid faces of pyrrhotite crystal and at the same time one pair of hexahedral faces have to be parallel with prismatic faces of pyrrhotite.
star-like galena crystals; Stari Trg mine
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Podaci o prilogu
261-264.
2012.
objavljeno
Podaci o matičnoj publikaciji
Geologica Macedonica, No. 3 - Zbornik na trudovi
Jovanovski, Milorad ; Boev, Blažo
Štip: Makedonsko geološko društvo
Podaci o skupu
Vtor kongres na geolozite na Republika Makedonija (2nd congress of geologists of Republic of Macedonia)
ostalo
28.09.2012-30.09.2012
Sjeverna Makedonija; Kruševo, Hrvatska