Olivine composition determination with small-diameter X-ray powder cameras
- 14 March 1964
- journal article
- Published by Mineralogical Society in Mineralogical Magazine and Journal of the Mineralogical Society
- Vol. 33 (264), 730-741
- https://doi.org/10.1180/minmag.1964.033.264.02
Abstract
Olivine composition can be rapidly and accurately obtained by using standard (Straumanis-mounting) 57·3 mm X-ray powder cameras. A determinative curve based on analysed natural olivines has been constructed by plotting the mol. % Fo against the spacing of back-reflection line 174. The regression equation for the composition range Fo100 to Fo30 isFo (mol. %) = 4151·46−3976·45 d174using Fe-Kα1 radiation. The fayalite end (Fo30 to Fo0) of the determinative curve shows a relatively sharp break from a straight-line relationship of d-spacing versus composition. Practical applications of the determinative curve are briefly presented.Keywords
This publication has 3 references indexed in Scilit:
- ANORTHOSITE-ADAMELLITE COMPLEX OF NAIN, LABRADORGSA Bulletin, 1960
- The Major Element Variation of the Layered Series of the Skaergaard Intrusion and a Re-estimation of the Average Composition of the Hidden Layered Series and of the Successive Residual MagmasJournal of Petrology, 1960
- Fayalite from Rockport, Massachusetts, and on the optical properties of the chrysolite- fayalite group and of monticelliteAmerican Journal of Science, 1896