Universität zu Köln

Androne, Delia Anne Marie, Dorohoi, Dana Ortansa, Dimitriu, Dan Gheorghe ORCID: 0000-0002-2474-5133 and Kasper, Haino Uwe (2018). Optical and Chemical Study of Quartz from Granitic Pegmatites. Rev. Chim., 69 (7). S. 1846 - 1851. BUCHAREST: CHIMINFORM DATA S A. ISSN 0034-7752

Full text not available from this repository.

Abstract

Of the nine quartz samples collected from the Contu - Negovanu granitic pegmatites (Southern Carpathians, Romania), three were separated under binocular lenses and turned into fine grained powders, for X-ray fluorescence (XRF) and inductively coupled plasma mass spectrometry (ICP-MS) investigation techniques, whilst the other six samples were prepared in thin slides for electron microprobe analyzer (EMPA) and optical investigations, using a Babinet compensator and a Rayleigh interferometer. The results show that the quartz samples belonging to the Contu-Negovanu granitic pegmatites are chemically very pure, showing an expected high participation of silica and only some remarkable contents of Fe, derived from iron oxide micro-inclusions finely disseminated in the quartz grains. The minor and trace elements distribution suggests that different crystallization conditions influenced the quartz composition, thus resulting some rather high contents of Ba, Rb, Sr and some REE contents (Ce) in the pegmatite quartz crystallized from alkali-and alkaline-earth-rich fluids, while the metamorphic quartz appears to be highly pure, showing no such presence. The analyzed quartz samples present birefringence parameters within the limits of other quartz samples and a decrease of the linear birefringence of quartz with the light wavelength increase is emphasized by the data obtained using the channeled spectrum.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Androne, Delia Anne Marie UNSPECIFIED UNSPECIFIED UNSPECIFIED Dorohoi, Dana Ortansa UNSPECIFIED UNSPECIFIED UNSPECIFIED Dimitriu, Dan Gheorghe UNSPECIFIED orcid.org/0000-0002-2474-5133 UNSPECIFIED Kasper, Haino Uwe UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-180992
Journal or Publication Title:	Rev. Chim.
Volume:	69
Number:	7
Page Range:	S. 1846 - 1851
Date:	2018
Publisher:	CHIMINFORM DATA S A
Place of Publication:	BUCHAREST
ISSN:	0034-7752
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language Chemistry, Multidisciplinary; Engineering, Chemical Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/18099