Great Thunder Summarizes Mineralogical and MAG and IP Results From Chubb and Bouvier Lithium Properties

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[{"type":"text","content":"Victoria, British Columbia (FSCwire) - Great Thunder Gold Corp. (TSXV: GTG) is pleased to announce the results of the mineralogical study and 3D MVI inversions model carried out on its Chubb and Bouvier lithium properties located in the Preissac-Lacorne area of the Abitibi Greenstone Belt of Quebec. That area hosts the operating Québec Lithium mine which, according to Canada Lithium’s June 2011 NI 43-101 technical report, has previously reported measured and indicated resources of 29.3 Mt grading 1.19% Li2O and 20.9 Mt of inferred resources grading 1.15% Li2O. The mineralogical study was completed by SGS Canada Inc. on two samples of spodumene-bearing granitic pegmatite collected from the Bouvier and Chubb sites. Highlights of the results are: The QEMSCAN analysis shows that the Bouvier sample consists of plagioclase (47%), quartz (29%), spodumene (17%), K-feldspars (3%), garnets (2%), and micas (1%). The Chubb sample consists of plagioclase (34%), quartz (29%), spodumene (27%), K-feldspars (9%), and micas (1%). The calculated lithium concentration from the QEMSCAN analysis is 0.63% (1.36 wt. % Li2O) and 1.0% (2.25 wt. % Li2O) and that calculated from the actual assays is 0.56% (1.21 wt. % Li2O) and 0.92% (1.98 wt. % Li2O) for the Bouvier and Chubb samples. Spodumene mineral separated from the Bouvier and Chubb samples yielded of 65.34 wt. % and 65.11 wt. % SiO2, and 27.20 wt. % and 26.74 wt. % Al2O3, respectively. The FeO in spodumene is lower in Bouvier at 0.56 wt. % than that in Chubb (1.07 wt. %), with other major elements such as K2O wt. % (0.00-0.01), CaO wt. % (0.01-0.02) and MgO wt. % (0.00) displaying very low concentrations. Free and liberated spodumene calculated for the head sample for Bouvier and Chubb accounts for 87% to 88% in both samples for a specific grind size (P80 of 425 μm). Therefore, these two samples could be processed together. The predicted ideal grade-recovery curves based on the liberation of the minerals indicate similar lithium grades of 3.6 wt. % (7.8 wt. % Li2O) to 3.3% (7.1 wt. % Li2O) for recoveries of 88% to 99%, respectively. Comparison of the mineralogical results gathered from the Chubb and Bouvier samples with the ore material provided from the Whabouchi Mine (Nemaska Lithium) in northern Quebec indicates similar characteristics. For instance, the Nemaska Lithium ore displays: Mineral comp...

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