Morphology and pyroelectricity of tourmaline from Central Transbaikalia, Russia (CROSBI ID 571240)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Bermanec, Vladimir ; Čobić, Andrea ; Zebec, Vladimir ; Mikulčić Pavlaković, Snježana ; Zagorsky, Victor
engleski
Morphology and pyroelectricity of tourmaline from Central Transbaikalia, Russia
Fifteen transparent prismatic tourmaline crystals of elbaite composition, with terminal pyramidal faces and basal pedion were measured on a two-circle goniometer. All samples studied are collected from two localities of gem-bearing miarolitic pegmatites in Central Transbaikalia, Russia – the Vodorazdel’naya mine and the Malkhan deposit. Their geology and mineralogy are described in detail by Zagorsky & Peretyazhko 1992 ; 2008. It was not clear from these morphological measurements weather the positive or negative end of crystallographic axis c is morphologically terminated. In order of determining true crystallographic and morphological orientation of tourmaline crystals, the pyroelectric effect of tourmaline was measured. Crystals were cooled to a temperature below 0 °C (approximately -10 °C) and afterwards heated to the room temperature. Relative electrical charge was measured with a digital milivoltmeter.
elbaite; morphology; pyroelectric effect; Transbaikalia
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Podaci o prilogu
29-31.
2011.
objavljeno
Podaci o matičnoj publikaciji
Contributions to the 5th international symposium on granitic pegmatites. Asociación Geológica Argentina, Serie D, Publicación Especial No 14
Galliski, Miguel Ángel ; Roda Robles, Encarnación ; Hatert, Frédéric ; Márquez-Zavalía, María Florencia
Mendoza:
0328-2767
Podaci o skupu
5th international symposium on granitic pegmatites, PEG 2011
poster
20.02.2011-27.02.2011
Mendoza, Argentina