Topaz as an important host for Ge in granites and greisens

J 2013

Topaz as an important host for Ge in granites and greisens

BREITER, Karel; Nina GARDENOVÁ; Tomáš VACULOVIČ and Viktor KANICKÝ

Basic information

Original name

Topaz as an important host for Ge in granites and greisens

Authors

BREITER, Karel (203 Czech Republic, guarantor); Nina GARDENOVÁ (203 Czech Republic, belonging to the institution); Tomáš VACULOVIČ (203 Czech Republic, belonging to the institution) and Viktor KANICKÝ (203 Czech Republic, belonging to the institution)

Edition

Mineralogical Magazine, 2013, 0026-461X

Other information

Language

English

Type of outcome

Article in a journal

Field of Study

10406 Analytical chemistry

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

is not subject to a state or trade secret

Impact factor

Impact factor: 1.898

RIV identification code

RIV/00216224:14310/13:00066322

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1180/minmag.2013.077.4.01

UT WoS

000321421500001

Keywords in English

topaz; germanium; gallium; LA-ICP-MS; Krusne Hory Mts.; Erzgebirge

Abstract

In the original language

The composition of topaz from different granites and greisen in the Krusne Hory/Erzgebirge area was investigated using electron microprobe analysis (EMPA) and Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS). All topaz grains are rich in F (17.9-19.8 wt.%, 1.73-1.90 a.p.f.u.) and the most important minor/trace elements are P, Ge and Ga. Contents of P up to 1 wt.% P2O5 (0.025 a.p.f.u.) were found in topaz from the strongly peraluminous P-rich magmatic systems at Podlesi. Regardless of genetic type, topaz from granites typically contains 50-100 ppm Ge. The greatest amounts (up to 204 ppm Ge) were found in topaz from quartz-topaz-apatite greisen in Krasno. In fractionated granites and greisens, topaz is calculated to contain 23-87% of the bulk Ge content in the rock. In contrast, topaz does not concentrate Ga. The Ga content of topaz (typically 5-35 ppm in S-type granites, <10 ppm Ga in A-type granites) is usually smaller than the bulk Ga content of the rock. In addition, up to 16 ppm Sc, 23 ppm Sn and >400 ppm Fe may be present.

Links

ED1.1.00/02.0068, research and development project

Name: CEITEC - central european institute of technology

GAP210/10/1309, research and development project

Name: Chování geochemických dvojic prvků Al/Ga a Si/Ge v různých typech kyselých silikátových tavenin

Investor: Czech Science Foundation, Behaviour of geochemical ,,twins" A/Ga and Si/Ge in different types of acid silicate melts

Cite

BREITER, Karel; Nina GARDENOVÁ; Tomáš VACULOVIČ and Viktor KANICKÝ. Topaz as an important host for Ge in granites and greisens. Mineralogical Magazine. 2013, vol. 77, No 4, p. 403-417. ISSN 0026-461X. Available from: https://dx.doi.org/10.1180/minmag.2013.077.4.01.

@article{1121998,
   author = {Breiter, Karel and Gardenová, Nina and Vaculovič, Tomáš and Kanický, Viktor},
   article_number = {4},
   doi = {http://dx.doi.org/10.1180/minmag.2013.077.4.01},
   keywords = {topaz; germanium; gallium; LA-ICP-MS; Krusne Hory Mts.; Erzgebirge},
   language = {eng},
   issn = {0026-461X},
   journal = {Mineralogical Magazine},
   title = {Topaz as an important host for Ge in granites and greisens},
   volume = {77},
   year = {2013}
}

TY  - JOUR
ID  - 1121998
AU  - Breiter, Karel - Gardenová, Nina - Vaculovič, Tomáš - Kanický, Viktor
PY  - 2013
TI  - Topaz as an important host for Ge in granites and greisens
JF  - Mineralogical Magazine
VL  - 77
IS  - 4
SP  - 403-417
EP  - 403-417
SN  - 0026461X
KW  - topaz
KW  - germanium
KW  - gallium
KW  - LA-ICP-MS
KW  - Krusne Hory Mts.
KW  - Erzgebirge
N2  - The composition of topaz from different granites and greisen in the Krusne Hory/Erzgebirge area was investigated using electron microprobe analysis (EMPA) and Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS). All topaz grains are rich in F (17.9-19.8 wt.%, 1.73-1.90 a.p.f.u.) and the most important minor/trace elements are P, Ge and Ga. Contents of P up to 1 wt.% P2O5 (0.025 a.p.f.u.) were found in topaz from the strongly peraluminous P-rich magmatic systems at Podlesi. Regardless of genetic type, topaz from granites typically contains 50-100 ppm Ge. The greatest amounts (up to 204 ppm Ge) were found in topaz from quartz-topaz-apatite greisen in Krasno. In fractionated granites and greisens, topaz is calculated to contain 23-87% of the bulk Ge content in the rock. In contrast, topaz does not concentrate Ga. The Ga content of topaz (typically 5-35 ppm in S-type granites, <10 ppm Ga in A-type granites) is usually smaller than the bulk Ga content of the rock. In addition, up to 16 ppm Sc, 23 ppm Sn and >400 ppm Fe may be present.
ER  -

BREITER, Karel; Nina GARDENOVÁ; Tomáš VACULOVIČ and Viktor KANICKÝ. Topaz as an important host for Ge in granites and greisens. \textit{Mineralogical Magazine}. 2013, vol.~77, No~4, p.~403-417. ISSN~0026-461X. Available from: https://dx.doi.org/10.1180/minmag.2013.077.4.01.

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