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Spectrochemical Determinations in Garnets Using a Laser Microprobe

Volume 22, Number 4 (Aug. 1968) Page 278-283

Blackburn, W.H.; Pelletier, Y.J.A.; Dennen, W.H.


Spectrochemical determinations of Fe, Mg, Mn, and Ca in garnets by use of a laser microprobe were performed in matrix. Standards were prepared by fusion of chemically analyzed mineral powders and these standard glasses were excited in the same manner as the mineral unknowns. Comparison of results with the rock standard W-1 showed good accuracy and reproducibility. The precision and accuracy of the method as a whole deems it suitable for most mineralogic investigations where analysis in matrix is desirable.