I have made more map work (by using Google terrain maps) for myself for understanding the geology of drilling location at Turesi prospect.
The current drilling holes cover very small area. I believe the company will drill more to the east (and a little bit to south) by following the foliated hornblende granite hosting pegmatites.
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They have found the 26m pegmatite in hole 3. That's very important. Of course you can find pegmatites everywhere but if you find the pegmatite under the ground where you find the high grade spodumene samples then you will think that those pegmatites under the ground might be spodumene bearing LCT pegmatite hence more drilling in the area.
The assay results of this pegmatite will tell us if it is a LCT (Lithium, Cesium, and Tantalum) pegmatite or not. I am only speculating that it could be a LCT pegmatite.
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Pegmatite rocks has two main very valuable types;
LCT - Lithium, Cesium, and Tantalum enrichment
NYF - Niobium, Yttrium, and Fluorine enrichment
Lithium is found in LCT pegmatite rocks. LCT pegmatites represent the most highly differentiated and last to crystallize components of certain granitic melts. LCT pegmatites are enriched in the incompatible elements lithium, cesium, tin, rubidium, and tantalum, and are distinguished from other rare-element pegmatites by this diagnostic suite of elements.
NYF rock can also be REE pegmatites.
And we know that there are a lot niobium there. That means there are both types in Morabisi
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You can see the idealised LCT pegmatite system schema below.
This schema is very important to understand where to look for lithium deposits.
You can see that lithium can be find most at the top of LCT pegmatite dyke system (it is the lightest metal elements) together with other rare earth elements like tantalum (Ta), cesium (Cs), beryllium (Be), tin (Sn) and niobium (Nb).
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If we make a schematic image of the pegmatites under the Turesi prospect ground it would look like the image below.
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