Trace element analysis of gem garnet by LA-ICP-MS; preliminary evaluation as micro-beam standard

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Authors:Fukuyama, Mayuko; Ogasawara, Masatsugu; Sato, Hinako; Ishiyama, Daizo
Author Affiliations:Primary:
Akita University, Faculty of Engineering and Resource Science, Akita, Japan
Volume Title:Chishitsu Chousa Kenkyuu Houkoku Bulletin of the Geological Survey of Japan
Source:Chishitsu Chousa Kenkyuu Houkoku = Bulletin of the Geological Survey of Japan, 58(3-4), p.93-103. Publisher: Sangyou Gijutsu Sougou Kenkyuujo Chishitsu Chousa Sougou Senta, Tsukuba, Japan. ISSN: 1346-4272
Publication Date:2007
Note:In Japanese with English summary. 17 refs.; illus., incl. 3 tables, 1 plate
Summary:Major and trace element concentrations of garnets were obtained to evaluate the homogeneity in the samples for possible micro-beam standard materials. In this study, we investigated five natural garnets, which is four gem garnets (GA1, GA2, GA3 and GA4) and one optically homogeneous garnet (GA5) in the skarn from Adirondack, USA. EPMA was used to obtain major element data to examine in detail the chemical homogeneity of the samples. Two garnets (GA4 and GA5) show compositional heterogeneity and are not suitable as the standard. Concentrations of 39 trace elements of garnets were obtained by LA-ICP-MS analysis. Evaluation of the REE and other trace element data indicates only one gem garnet (GA1) with a grossular composition has the potential for being a standard mineral. [I.S.]
Sections:Apparatus and techniques; Gemstones
Subjects:Chemical analysis; Chemical composition; Evaluation; Garnet deposits; Garnet group; Gems; Geochemistry; ICP mass spectra; Mass spectra; Metals; Metamorphic rocks; Metasomatic rocks; Methods; Nesosilicates; Orthosilicates; Rare earths; Silicates; Skarn; Spectra; Trace elements; Trace-element analyses; Adirondack Mountains; New York; United States
Coordinates:N430000 N443000 W0733000 W0750000
Abstract Numbers:08M/3646
Record ID:2009060004
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute.
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