The diamond holes were drilled at Carrier de l’Este returning an average grade of more than 2% lithium oxide and with drill core recovery of more than 97% in the pegmatite.
Results confirm the continuity of the Carriere de l’Este pegmatite under alluvial cover and shallow dipping high-grade intersections present within wider zones of well-mineralised spodumene pegmatite.
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AVZ Minerals managing director Nigel Ferguson said: “These last two holes drilled at Carriere de l’Este are of the same lithium grade tenor and intersection widths as those reported on previously.
“Both holes 5 and 6, have drilled through high-grade zones averaging over 2% lithium oxide mineralisation which was also seen on holes spaced 200 metres along strike.
“Hole 5, for example, generated 56 by 1-metre assays greater than 2% lithium oxide with a maximum value in one sample of 3.97% from 166 to 167 metres deep.
“In excess of 50% spodumene”
“Hole 6 was comparable with 97 samples returning values greater than 2% including five individual samples grading greater than 4% lithium oxide which equates to each of the five samples containing in excess of 50% spodumene.
“The highest value from hole 6 was from 181 to 182 metres downhole and reported 4.65% lithium oxide.”
“Higher-grade zones within well-mineralised pegmatite”
Ferguson said: “Carriere de l’Este is unlike Roche Dure in that it has higher grade zones within well-mineralised pegmatite.
“Depending on future drilling, this may open up possibilities for high-grade blending with Roche Dure mineralisation to shorten payback periods and is definitely worth considering as we move through the mining study phase currently underway.”