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Cohiba Minerals Ltd.
Summary
| Project: | Pyramid Lake | |
|---|---|---|
| Deposit: | Pyramid Lake | |
| Location: | Australia | |
| Commodities: | Gypsum | |
| Date: | 8/28/2018 | |
| Report Code: | JORC | |
| Report Type: | Resource Estimation | |
| Project Stage: | Pursuing Resource Increase/Upgrade | |
| Report details: | 28-8-2018: Cohiba Minerals Ltd. announces a Resource Estimation report for its Pyramid Lake deposit at the Pyramid Lake project. Initial mineral resource estimate for Pyramid lake. Cohiba Minerals Limited (‘Cohiba’ or ‘the Company’) provides below an upda | |
| Resources: | (Resource): 1.3Mt @ 78% Gypsum (Ind.), 2.6Mt @ 67% Gypsum (Inf.) | |
| CP/QP: | [Resources]: Murray Brooker (Hydrominex Geoscience Pty Ltd.) | |
| ABSTRACT: | Cohiba Minerals Limited (‘Cohiba’ or ‘the Company’) provides below an update in relation to recent exploration activities on the Pyramid Lake project in southwestern WA. Pyramid Lake (E74/594) location and background The E74/594 property (Figure 1) is located 115 km northwest of Esperance (150 km by road) and is accessed from the highway linking Ravensthorpe and Esperance. Systematic grid sampling of gypsum material was undertaken to assess the extent and quality of gypsum in a large north-south oriented dune, immediately west of a series of lakes where gypsum is considered to be deposited from evaporation of groundwater. Gypsum is wind-blown to form the north-south dune system and consequently has a low level of impurities. The systematic sampling program was undertaken on east-west oriented sampling lines, with samples taken every 25 m along the lines and the lines spaced 200 m in a north-south direction (Figure 2). Samples were submitted to the Intertek laboratory in Perth, with duplicate samples submitted to the Independent Nagrom laboratory. In total, 109 holes were hand augered to a depth of up to 3 m below surface, with most samples taken from 0 to 1 m depth, 25 samples taken from 1 to 2 m and an additional 13 samples taken from 2 to 3 m depth. Material collected from each 1 m sample interval was laid out on a tarpaulin and homogenised, before a representative samples was taken for analysis and photographs taken for description of the samples. In total, five duplicate samples were sent for analysis in the Intertek primary laboratory (approximately 1 every 20 samples) and 10 duplicates were sent for analysis in the Nagrom secondary laboratory. When samples were received at the laboratories they were sieved to separate material into the size fractions of >5.6 mm, 2 to 5.6 mm and < 2 mm; the priority size fraction. Samples were typically dominated by the finer grained < 2 mm size fraction which is of importance for the agricultural gypsum product requirements. From the 109 holes, 150 primary samples were analysed for gypsum content, with calcium, sulphate, sodium, chloride, lead and cadmium analysed and the gypsum content calculated from the calcium and sulphate analyses. | |
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