RE: How Long Ago2 Jan 2022 17:46
@Barksy1,
I do believe we have the jewel in the crown in Clays!
https://www.reuters.com/article/us-mexico-mining-lithium-exclusive-idUSKCN2E52FN
National Geological Service Director Flor de Maria Harp said late on Monday that the average amount of lithium found in samples reported by Bacanora Lithium, or about 3,415 parts per million (ppm), exceed typical concentrations found elsewhere in Mexico’s mostly clay-based lithium deposits.
Her comments represented some of the first independent backing for Bacanora’s claims about the concentrations.
“Bacanora is really a very good deposit,” she said, adding that the service she runs has seen another ore sample from the same project that held some 16,000 ppm of lithium - a previously undisclosed number.
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(Thanks @Obsever842 for this report link earlier in the year)
https://bacanoralithium.com/_userfiles/pages/files/documents/bacanorafstechnicalreport25012018_compressed.pdf
Last sentence below:
SRK also notes that the maximum value of 10,000 ppm Li that can be returned by the laboratory and method employed terminates the distribution curve of the Lower Clay Unit unnaturally. This suggests that all samples currently in the database with a value of 10,000 ppm would have higher grades if they were submitted for assay using a different method with a higher detection limit. There are a total of twenty samples in the raw sample database that have been returned with the upper analytical detection limit of 10,000 ppm Li. All of these samples fall within the high grade core of the Lower Clay Unit in Block 4. It is not considered to be a material issue, however, local grade estimates in this area will be underreporting true grades.
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Obviously, this is something that needs a qualified person to cast their eyes over,