Ce metal?
Interesting, make a photo of it?
Thanks Charles,
Geo>K0FF?
----- Original Message -----
From: Charles David Young <charlesdavidyoung@...>
To:
[email protected]Sent: Wed, 04 Mar 2020 07:25:08 -0500 (EST)
Subject: Re: [XRF] Si-PIN with a view
Steve,
This is from Gunnar Faerber who did his own analysis.? He is also the one that identified the Betafo speciman as brannerite.
Meanwhile, this is an interesting scan of Ce metal.? It is evidently hard to purify it of the other lanthanides because it shows plenty of Sm and even detectable La.? The La1 and Lb1 peaks echo the Ka1 and Kb1 peaks nicely.? Taken together this set of peaks is quite useful for calibration from low to high.
Charles
On Tue, Mar 3, 2020 at 9:03 PM WILLIAM S Dubyk <
sdubyk@...> wrote:
Charles, who did you get your specimen of ishikawaite from, and do you have a microprobe analysis for it? The reason I ask is that out of curiosity I looked at some of the samarskite analyses from the Petaca district, and several of the Queen mine specimens may be that mineral. I will ask Al Falster, who is somewhat of an expert on the samarskite minerals, about what analyses to use to determine this - oxides versus cation ratios. From my understanding, this mineral has U+Th greater than Y+REE, and that is what I see in the Queen mine specimens.
Steve
