<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:contributor>Heather A. Lowers</dc:contributor>
  <dc:contributor>Scott A. Wight</dc:contributor>
  <dc:contributor>Edward P. Vicenzi</dc:contributor>
  <dc:creator>Thomas Lameris</dc:creator>
  <dc:date>2024</dc:date>
  <dc:description>&lt;p class="chapter-para"&gt;Options for selecting a high Na concentration mineral for instrument calibration that are suitably stable under the electron beam are limited [&lt;span id="jumplink-ozae044.012-B1" class="xrefLink"&gt;&lt;/span&gt;&lt;a class="link link-ref link-reveal xref-bibr" data-open="ozae044.012-B1" data-google-interstitial="false"&gt;1&lt;/a&gt;]. NaCl (approximately a mass fraction of 39 % Na) is not practical for use alongside other embedded and polished materials in a mounted block of standards. While albite (NaAlSi&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;8&lt;/sub&gt;; approximately a mass fraction of 8 % Na) represents a typical choice for some microanalysts, it may be subject to time dependent signal intensity issues, such as those observed for Na and other cations during analysis of hydrous glasses [&lt;span id="jumplink-ozae044.012-B2" class="xrefLink"&gt;&lt;/span&gt;&lt;a class="link link-ref link-reveal xref-bibr" data-open="ozae044.012-B2" data-google-interstitial="false"&gt;2&lt;/a&gt;]. Near endmember jadeite pyroxene (NaAlSi&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;6&lt;/sub&gt;; approximately mass fraction of 11 % Na) represents a desirable option for calibration given its relatively large concentration of Na and insensitivity to electron beam radiation with respect to X-ray output. Despite these desirable characteristics, jadeites have been shown to contain complex microstructures as the result of intracrystalline zoning [&lt;span id="jumplink-ozae044.012-B3" class="xrefLink"&gt;&lt;/span&gt;&lt;a class="link link-ref link-reveal xref-bibr" data-open="ozae044.012-B3" data-google-interstitial="false"&gt;3&lt;/a&gt;,&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;span id="jumplink-ozae044.012-B4" class="xrefLink"&gt;&lt;/span&gt;&lt;a class="link link-ref link-reveal xref-bibr" data-open="ozae044.012-B4" data-google-interstitial="false"&gt;4&lt;/a&gt;], and the impact of chemical inhomogeneity within mineral standards and natural glasses has been documented [&lt;span id="jumplink-ozae044.012-B5 ozae044.012-B6 ozae044.012-B7" class="xrefLink"&gt;&lt;/span&gt;&lt;a class="link link-ref link-reveal xref-bibr" data-open="ozae044.012-B5 ozae044.012-B6 ozae044.012-B7" data-google-interstitial="false"&gt;5-7&lt;/a&gt;]. In this study, a commercially obtained jadeite crystal (source location “China”) was studied to assess its microscale uniformity using a suite of microbeam methods, including dispersive red-green-blue multispectral cathodoluminescence imaging (CL&lt;sub&gt;RGB&lt;/sub&gt;), hyperspectral CL imaging spectrometry, energy dispersive X-ray spectrometry (EDS), SEM-based micro-X-ray fluorescence (μXRF), and wavelength dispersive X-ray spectrometry (WDS).&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1093/mam/ozae044.012</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Oxford University Press</dc:publisher>
  <dc:title>Cathodoluminescence imaging and spectrometry of a jadeite microbeam reference crystal: Detection of Ce3+</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>