A New Albite Microanalytical Reference Material from Piz Beverin for Na, Al and Si Determination, and the Potential for New K‐Feldspar Reference Materials

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • Julien M. Allaz
  • Marcel Guillong
  • Lorenzo Tavazzani
  • Georg Spiekermann
  • Lydia Zehnder
  • Emma Bullock
  • Joel DesOrmeau
  • Michael J. Jercinovic
  • Joachim Krause
  • Felix Marxer
  • William O. Nachlas
  • John Spratt

Externe Organisationen

  • ETH Zürich
  • Carnegie Institution of Washington
  • University of Nevada, Reno
  • University of Massachusetts
  • Helmholtz-Zentrum Dresden-Rossendorf (HZDR)
  • University of Wisconsin-Madison (UW)
  • Natural History Museum
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Details

OriginalspracheEnglisch
Seiten (von - bis)907-929
Seitenumfang23
FachzeitschriftGeostandards and Geoanalytical Research
Jahrgang47
Ausgabenummer4
Frühes Online-Datum9 Juni 2023
PublikationsstatusVeröffentlicht - Dez. 2023

Abstract

Determination of alkali elements is important to Earth scientists, yet suitable and reliable microanalytical reference materials are lacking. This paper proposes a new albite reference material and evaluates the potential for future K-feldspar reference materials. The proposed Piz Beverin albite reference material from Switzerland yields a homogeneous composition at the centimetre- to micrometre-scale for Si, Al and Na with < 2000 μg g -1 total trace elements (mostly heterogeneously distributed Ca, K and Sr). EPMA and LA-ICP-MS measurements confirm a composition of 99.5(2)% albite component, which is supported further by bulk XRF measurements. A round robin evaluation involving nine independent EPMA laboratories confirms its composition and homogeneity for Si, Al and Na. In addition, a set of five distinct clear K-feldspar samples was evaluated as possible reference materials. The first two crystals of adular and orthoclase yield unacceptable inhomogeneities with > 2% relative local variations of Na, K and Ba contents. The three other investigated sets of K-feldspar crystals are yellow sanidine crystals from Itrongay (Madagascar). Despite distinct compositions, EPMA confirms they are each homogeneous at the centimetre to micrometre scale for Si, Al and K and have no apparent inclusions; further investigation to find larger amounts of these materials is therefore justified.

ASJC Scopus Sachgebiete

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A New Albite Microanalytical Reference Material from Piz Beverin for Na, Al and Si Determination, and the Potential for New K‐Feldspar Reference Materials. / Allaz, Julien M.; Guillong, Marcel; Tavazzani, Lorenzo et al.
in: Geostandards and Geoanalytical Research, Jahrgang 47, Nr. 4, 12.2023, S. 907-929.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Allaz, JM, Guillong, M, Tavazzani, L, Spiekermann, G, Zehnder, L, Bullock, E, DesOrmeau, J, Jercinovic, MJ, Krause, J, Marxer, F, Nachlas, WO & Spratt, J 2023, 'A New Albite Microanalytical Reference Material from Piz Beverin for Na, Al and Si Determination, and the Potential for New K‐Feldspar Reference Materials', Geostandards and Geoanalytical Research, Jg. 47, Nr. 4, S. 907-929. https://doi.org/10.1111/ggr.12515
Allaz, J. M., Guillong, M., Tavazzani, L., Spiekermann, G., Zehnder, L., Bullock, E., DesOrmeau, J., Jercinovic, M. J., Krause, J., Marxer, F., Nachlas, W. O., & Spratt, J. (2023). A New Albite Microanalytical Reference Material from Piz Beverin for Na, Al and Si Determination, and the Potential for New K‐Feldspar Reference Materials. Geostandards and Geoanalytical Research, 47(4), 907-929. https://doi.org/10.1111/ggr.12515
Allaz JM, Guillong M, Tavazzani L, Spiekermann G, Zehnder L, Bullock E et al. A New Albite Microanalytical Reference Material from Piz Beverin for Na, Al and Si Determination, and the Potential for New K‐Feldspar Reference Materials. Geostandards and Geoanalytical Research. 2023 Dez;47(4):907-929. Epub 2023 Jun 9. doi: 10.1111/ggr.12515
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title = "A New Albite Microanalytical Reference Material from Piz Beverin for Na, Al and Si Determination, and the Potential for New K‐Feldspar Reference Materials",
abstract = "Determination of alkali elements is important to Earth scientists, yet suitable and reliable microanalytical reference materials are lacking. This paper proposes a new albite reference material and evaluates the potential for future K-feldspar reference materials. The proposed Piz Beverin albite reference material from Switzerland yields a homogeneous composition at the centimetre- to micrometre-scale for Si, Al and Na with < 2000 μg g -1 total trace elements (mostly heterogeneously distributed Ca, K and Sr). EPMA and LA-ICP-MS measurements confirm a composition of 99.5(2)% albite component, which is supported further by bulk XRF measurements. A round robin evaluation involving nine independent EPMA laboratories confirms its composition and homogeneity for Si, Al and Na. In addition, a set of five distinct clear K-feldspar samples was evaluated as possible reference materials. The first two crystals of adular and orthoclase yield unacceptable inhomogeneities with > 2% relative local variations of Na, K and Ba contents. The three other investigated sets of K-feldspar crystals are yellow sanidine crystals from Itrongay (Madagascar). Despite distinct compositions, EPMA confirms they are each homogeneous at the centimetre to micrometre scale for Si, Al and K and have no apparent inclusions; further investigation to find larger amounts of these materials is therefore justified.",
keywords = "LA-ICP-MS and XRF analysis, RM evaluation, alkali elements, combined EPMA, feldspar minerals, natural microanalytical reference materials",
author = "Allaz, {Julien M.} and Marcel Guillong and Lorenzo Tavazzani and Georg Spiekermann and Lydia Zehnder and Emma Bullock and Joel DesOrmeau and Jercinovic, {Michael J.} and Joachim Krause and Felix Marxer and Nachlas, {William O.} and John Spratt",
note = "Funding Information: Prof. Peter Brack, Dr. Andrea Galli and Dr. Eric Reusser are warmly thanked for providing these mineral samples, along with their unknown collectors. PhD student Taraneh Roodpeyma is thanked for first identified this promising albite μRM for her research needs at ETH Z{\"u}rich. PhD student Rebecca Zech is acknowledged for her help with the Selfrag. We are also grateful to one anonymous EPMA laboratory for providing data and to Dr. Robert Downs for uploading the Raman data on RRUFF. We thank editor Dr. Paul Sylvester and two anonymous reviewers for their wise feedback. The hosting institutions of each respective scientific laboratory are thanked for their continuous financial support. JD at UNR gratefully acknowledges support from NSF EAR‐MRI award 2018647. FM acknowledges funding by the DFG project HO1337/47 (part of the Forschungsgruppe FOR 2881 {"}Diffusion chronometry of magmatic systems{"}). All authors declare that they have no conflicts of interest. Open access funding provided by Eidgenossische Technische Hochschule Zurich.",
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T1 - A New Albite Microanalytical Reference Material from Piz Beverin for Na, Al and Si Determination, and the Potential for New K‐Feldspar Reference Materials

AU - Allaz, Julien M.

AU - Guillong, Marcel

AU - Tavazzani, Lorenzo

AU - Spiekermann, Georg

AU - Zehnder, Lydia

AU - Bullock, Emma

AU - DesOrmeau, Joel

AU - Jercinovic, Michael J.

AU - Krause, Joachim

AU - Marxer, Felix

AU - Nachlas, William O.

AU - Spratt, John

N1 - Funding Information: Prof. Peter Brack, Dr. Andrea Galli and Dr. Eric Reusser are warmly thanked for providing these mineral samples, along with their unknown collectors. PhD student Taraneh Roodpeyma is thanked for first identified this promising albite μRM for her research needs at ETH Zürich. PhD student Rebecca Zech is acknowledged for her help with the Selfrag. We are also grateful to one anonymous EPMA laboratory for providing data and to Dr. Robert Downs for uploading the Raman data on RRUFF. We thank editor Dr. Paul Sylvester and two anonymous reviewers for their wise feedback. The hosting institutions of each respective scientific laboratory are thanked for their continuous financial support. JD at UNR gratefully acknowledges support from NSF EAR‐MRI award 2018647. FM acknowledges funding by the DFG project HO1337/47 (part of the Forschungsgruppe FOR 2881 "Diffusion chronometry of magmatic systems"). All authors declare that they have no conflicts of interest. Open access funding provided by Eidgenossische Technische Hochschule Zurich.

PY - 2023/12

Y1 - 2023/12

N2 - Determination of alkali elements is important to Earth scientists, yet suitable and reliable microanalytical reference materials are lacking. This paper proposes a new albite reference material and evaluates the potential for future K-feldspar reference materials. The proposed Piz Beverin albite reference material from Switzerland yields a homogeneous composition at the centimetre- to micrometre-scale for Si, Al and Na with < 2000 μg g -1 total trace elements (mostly heterogeneously distributed Ca, K and Sr). EPMA and LA-ICP-MS measurements confirm a composition of 99.5(2)% albite component, which is supported further by bulk XRF measurements. A round robin evaluation involving nine independent EPMA laboratories confirms its composition and homogeneity for Si, Al and Na. In addition, a set of five distinct clear K-feldspar samples was evaluated as possible reference materials. The first two crystals of adular and orthoclase yield unacceptable inhomogeneities with > 2% relative local variations of Na, K and Ba contents. The three other investigated sets of K-feldspar crystals are yellow sanidine crystals from Itrongay (Madagascar). Despite distinct compositions, EPMA confirms they are each homogeneous at the centimetre to micrometre scale for Si, Al and K and have no apparent inclusions; further investigation to find larger amounts of these materials is therefore justified.

AB - Determination of alkali elements is important to Earth scientists, yet suitable and reliable microanalytical reference materials are lacking. This paper proposes a new albite reference material and evaluates the potential for future K-feldspar reference materials. The proposed Piz Beverin albite reference material from Switzerland yields a homogeneous composition at the centimetre- to micrometre-scale for Si, Al and Na with < 2000 μg g -1 total trace elements (mostly heterogeneously distributed Ca, K and Sr). EPMA and LA-ICP-MS measurements confirm a composition of 99.5(2)% albite component, which is supported further by bulk XRF measurements. A round robin evaluation involving nine independent EPMA laboratories confirms its composition and homogeneity for Si, Al and Na. In addition, a set of five distinct clear K-feldspar samples was evaluated as possible reference materials. The first two crystals of adular and orthoclase yield unacceptable inhomogeneities with > 2% relative local variations of Na, K and Ba contents. The three other investigated sets of K-feldspar crystals are yellow sanidine crystals from Itrongay (Madagascar). Despite distinct compositions, EPMA confirms they are each homogeneous at the centimetre to micrometre scale for Si, Al and K and have no apparent inclusions; further investigation to find larger amounts of these materials is therefore justified.

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KW - RM evaluation

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KW - combined EPMA

KW - feldspar minerals

KW - natural microanalytical reference materials

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