Eagle Star Minerals Corp., (TSX VENTURE:EGE)(PINK SHEETS:ELGSF)(FRANKFURT:E6R) (“Eagle Star”) has applied for the addition of 18 new mineral claims in the state of Piaui in Northeastern Brazil to the west and north of the company’s Ruth Phosphate Project. Of the 18 applied-for claims, one was found to contain additional phosphates while the remaining 17 have shown to contain potash rock.
Eagle Star’s primary sampling process on the new claims was based on spacing of 3km and was focused on phosphate in a certain type of rock, followed up by a more general random sampling process over the entire area. Without a specific target, the random sampling process was carried out as a trial to determine the qualities of the claims, and positively returned indications of potash rocks. Phosphate and potash can sometimes be associated in the same area, but in different beds, as seen in deposits of glauconite in East Otago, New Zealand which can be found with phosphate rocks.
Sampling Results – Phosphates
The newest phosphate claim showed results of 9% P2O5 within an isolated point at similar levels to that observed on the Paes Landim block. Results of the Paes Landim block can be found on Eagle Star’s website under the Ruth Phosphate Project.
Sampling Results – Potash
Preliminary field studies show high values of K2O coming from glauconite, which is a potash silicate mineral also known as potash rock. Glauconite contains between 4-8% potassium along with iron, magnesium and aluminum bound together with silica. It has mildly magnetic properties because of its iron content, which can be used to magnetically upgrade rock material to produce pure glauconite concentrates. The best results for K2O came from a white-green siltstone (glauconite), unlike the siltstones in the area known to host phosphate rock. All 12 sample results ranging between 4.04% and 6.19% of K2O were considered anomalous to potash. 6 results were located within the blocks previously claimed by Eagle Star and 6 in the new areas. The best result was detected near the town of São Luiz do Piaui following a rising sequence of K2O sample results from South to North of 1,07%-2,19%-3,51%-6,19% K2O. Since the sampling stopped at this last point, this tendency should suggest high values ahead.
Comments
phosphorus mineral
Thanks for sharing the awesome post. Glauconite contains between 4-8% potassium along with iron, magnesium and aluminum bound together with silica. It has mildly magnetic properties because of its iron content, which can be used to magnetically upgrade rock material to produce pure glauconite concentrates.