Publication detail

Can lithium contents in mica be correctly calculated? Tischendorf́s proposal (Mineralogical Magazine 61/1997) 25 years after

Breiter K., Vašinová Galiová M., Korbelová Z., Hložková M.

Original Title

Can lithium contents in mica be correctly calculated? Tischendorf́s proposal (Mineralogical Magazine 61/1997) 25 years after

Type

journal article in Web of Science

Language

English

Original Abstract

Micas are the most common hosts of lithium in granitoid igneous rocks. Unfortunately, their Li contents cannot be determined by electron-probe microanalysis (EPMA) which is the most common method of mineral analysis. In an effort to avoid the use of other, technically more complex and expensive methods, several empirical schemes for the estimation of Li-contents from EPMA data have been developed. The methods proposed by Tischendorf (Mineralogical Magazine, 1997) have found the widest application. After 25 years of common usage, we have evaluated these methods by direct Li determination using laser ablation-inductively coupled plasma-mass spectrometry (LA–ICP–MS). Approximately 3000 spot analyses of Li in micas from eight areas worldwide obtained by LA–ICP–MS were compared with the values yielded by the methods of Tischendorf. We conclude that none of the lithium estimation methods can compensate fully for a real local analysis by LA–ICP–MS or secondary-ion mass spectrometry (SIMS). Generally, SiO2-based estimation for trioctahedral micas provides a better match to the analysed values than F-based estimation for dioctahedral micas. The Rb-based estimation for dioctahedral micas does not provide acceptable results. The usage of averaged Si- and F-based estimations can be accepted in common petrological studies for a general characterisation of mica species. Large errors of individual spot estimations preclude their usage in detailed mineralogical studies.

Keywords

lithium mica; lithium analyses; lithium estimation

Authors

Breiter K., Vašinová Galiová M., Korbelová Z., Hložková M.

Released

18. 9. 2023

ISBN

1471-8022

Periodical

MINERALOGICAL MAGAZINE

Year of study

2023

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

9

Pages count

9

URL

https://www.cambridge.org/core/journals/mineralogical-magazine/article/abs/can-lithium-contents-in-mica-be-correctly-calculated-tischendorfs-proposal-mineralogical-magazine-611997-25-years-after/B04D143AF804191B9A73DD2BFEF8A3E6

BibTex

@article{BUT187662,
  author="Michaela {Vašinová Galiová}",
  title="Can lithium contents in mica be correctly calculated? Tischendorf́s proposal (Mineralogical Magazine 61/1997) 25 years after",
  journal="MINERALOGICAL MAGAZINE",
  year="2023",
  volume="2023",
  number="1",
  pages="1--9",
  doi="10.1180/mgm.2023.72",
  issn="1471-8022",
  url="https://www.cambridge.org/core/journals/mineralogical-magazine/article/abs/can-lithium-contents-in-mica-be-correctly-calculated-tischendorfs-proposal-mineralogical-magazine-611997-25-years-after/B04D143AF804191B9A73DD2BFEF8A3E6"
}