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Pollucite.
The Question
At the Sinclair Caesium deposit, the core was being scanned per meter. This means for every one metre of core there is one analysis point to summaries that section.
Within pollucite sample what is the composition of the veins through the sample?
A sample from the high-grade pollucite zone (>20% Cs) was analysed by the Bruker M4 TORNADO to answer this question.
Our Findings
The elevated concentrations of Rb, Mn, K and Ca in the veins and veinlets are used to map out several distinct generations. The abundance of these elements also varied considerably within individual veins.
The main NE and NW veins in the sample are composed of lepidolite and are verified by the high concentrations of Rb and K. The other veinlets running in NNW and NNE are characterised by differing abundances of Mn, K and Ca. Anhedral albite grains are identified with minor potassic alteration halos and are orientated in the same direction as the NNW trending lepidolite veinlets.
The micro-XRF analysis of this sample highlights the wealth of information and knowledge that was gained from a quick scan of pollucite ore.
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Figure 1a: Pollucite sample used. Area of 17.5cm wide was scanned.
Image courtesy of Portable Spectral Services.
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Figure 1b: Pollucite, elemental heat map Sr. Area of 17.5cm wide was scanned.
Image courtesy of Portable Spectral Services.
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Figure 1c: Pollucite, elemental heat map Rb. Area of 17.5cm wide was scanned.
Image courtesy of Portable Spectral Services.
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Figure 1d: Pollucite, elemental map Na. Area of 17.5cm wide was scanned.
Image courtesy of Portable Spectral Services.
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Figure 1e: Pollucite, elemental heat map Cs. Area of 17.5cm wide was scanned.
Image courtesy of Portable Spectral Services.
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Figure 1f: Pollucite, elemental heat map Mn. Area of 17.5cm wide was scanned.
Image courtesy of Portable Spectral Services.
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Figure 1g: Pollucite, elemental map Ca, Sr and Rb. Area of 17.5cm wide was scanned.
Image courtesy of Portable Spectral Services.
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Figure 1h: Pollucite, elemental heat map Ca. Area of 17.5cm wide was scanned.
Image courtesy of Portable Spectral Services.
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Figure 1i: Pollucite, elemental heat map K. Area of 17.5cm wide was scanned.
Image courtesy of Portable Spectral Services.