Re: XRF - comparing Dud's with my Si-PIN
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BTW, the small peak at about the FeSi escape actually aligns better with TiKa1.? Dud's XRF shows 0.6% Ti.? Are we sure this is not TiKa1?
Charles
Nearly 2 years ago (5/23/18) Dud was kind enough to shoot some of my specimens with his XRF "gun", which has a pinpoint xray source.? Several of my rocks were found in the rubble piles of the local rock shop "Tucson Mineral and Gem World", which has been open for about 60 years.? One piece is large and ugly:
Looking at my results (blue scan) the Nb peak is off the charts!? Even more significant is that Dud's results show the same thing:
Nb 101.88% Fe 35.76% Ta 15.4% Mn 2.54% Y 0.279%
Comparing these percentages to the relative heights of the same peaks on my scan one finds similar proportions.? It is very satisfying to know that my results largely corroborate those of Dud's.
Also plotted is a samarskite from Little Patsy.? It has a relatively high Y component.
Charles
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