Cypress talks about clay, the brine is still to be
drilled into through the high lithium clay.
The clay is the most important as its easily leached with a low acid and water. This is very important. It means that a high lithium resource is from the surface on down to the brine. The clay is soft and actualy came from below the lithium brine many moons ago when it was heaved up. "like the sediment from a river bottom" Its very rich and a lot more economical.
Pure Energy is very interested in the clay. There Geologist states so in the latest presentation.
BELOW LOOK AT THE FANTASTIC LEACHING RESULTS
Companies like Nebraska in Quebec are in the hard rock. Very expensive to process.
The outcropping lithium-rich claystones
discovered at Cypress' Clayton Valley property are believed to represent uplifted portions of the stratigraphy within which the lithium carbonate brines of the basin are found and produced from.
Cypress' January 2016 Phase 1 sampling program returned the highest reported assay result for lithium in claystones known by the Company to be publicly reported in Nevada's Clayton Valley history.
Several of the assays carried greater than 2,000 ppm lithium (Li) with one assay sample returning a grade of 3,070 ppm lithium (Li) content. The assay results encountered suggested a strong possibility of an essentially continuously mineralized volume of lithium-rich claystones at surface over extensive portions of Cypress' Clayton Valley property.
Results of Lithium Leach Test of Surface Claystones at Cypress' Clayton Valley Project:
A number of 2016 Phase 2 sample pulps were re-assayed at the ALS Chemex lab in Reno, Nevada by both a pure deionized water leach and a weak Aqua Regia (weak acid) leach to provide further data on the potential feasibility of large-scale leach extraction methods of lithium from the mineralized claystones. The goal of this work was to substantiate the potential to produce lithium directly from the mineralized claystones with a low cost and environmentally friendly approach without the need for roasting or other costly mining and complex treatments.
47 samples were selected for the lithium (Li) leach test from over 200 collected during Cypress' Phase 2 program. The 47 samples previously averaged 1,334 ppm (Li) and cover 2 kilometers of strike length of the exposed mineralization. The 47 samples assayed an averaged of 1,276 ppm (Li) using the weak acid leach method. The leach test results for extracting lithium directly from the claystones show an impressive average of 95% recovery of (Li) using the weak acid method.
Table 2 below shows previously assayed samples when re-assayed using the weak acid leach method for lithium percentage recovered.
Table 2: Lithium Leach Test Extraction Results from Mineralized Claystones
| SAMPLE # |
4 Acid/ICP-Mass Spec
Li ppm Assay
(Previously Reported) |
Weak Aqua Regia
Li ppm Assay
(Reported Here) |
Weak Aqua Regia
Li % Extracted |
| 123135 |
2220 |
2100 |
95% |
| 123136 |
2100 |
2080 |
99% |
| 123137 |
3070 |
2850 |
93% |
| 243681 |
1680 |
1730 |
100% |
| 243687 |
1300 |
1260 |
97% |
| 243691 |
1620 |
1620 |
100% |
| 123208 |
1910 |
1940 |
100% |
| 123209 |
1170 |
1170 |
100% |
| 123210 |
1790 |
1720 |
96% |
| 123211 |
1000 |
920 |
92% |
| 123212 |
860 |
800 |
93% |
| 123213 |
900 |
830 |
92% |
| 123214 |
1460 |
1380 |
95% |
| 123215 |
1230 |
1130 |
92% |
| 123216 |
970 |
1110 |
100% |
| 123217 |
1270 |
1230 |
97% |
| 123218 |
1060 |
1020 |
96% |
| 123219 |
770 |
740 |
96% |
| 123220 |
1610 |
1570 |
98% |
| 123221 |
1210 |
1150 |
95% |
| 123222 |
850 |
820 |
96% |
| 123223 |
900 |
860 |
96% |
| 123224 |
1430 |
1410 |
99% |
| 123225 |
1260 |
1230 |
98% |
| 123226 |
2020 |
1900 |
94% |
| 123227 |
2120 |
2000 |
94% |
| 123228 |
950 |
970 |
100% |
| 123229 |
1320 |
1300 |
98% |
| 123230 |
1240 |
1160 |
94% |
| 123232 |
1190 |
1090 |
92% |
| 123233 |
1330 |
1350 |
100% |
| 123234 |
1510 |
1460 |
97% |
| 123235 |
2600 |
2490 |
96% |
| 123236 |
2250 |
2060 |
92% |
| 123238 |
710 |
690 |
97% |
| 123239 |
1010 |
970 |
96% |
| 123240 |
1100 |
1080 |
98% |
| 123150 |
1120 |
1050 |
94% |
| 123155 |
1140 |
1010 |
89% |
| 123158 |
910 |
820 |
90% |
| 123161 |
1230 |
1110 |
90% |
| 123170 |
1290 |
1180 |
91% |
| 123176 |
860 |
790 |
92% |
| 123183 |
840 |
790 |
94% |
| 123192 |
750 |
620 |
83% |
| 123206 |
860 |
770 |
90% |
| 243674 |
700 |
640 |
91% |
*NOTE: To convert Lithium Metal (Li) to Lithium Carbonate (Li2CO3) multiply Li by 5.323
For example 1,000 ppm Li assay is equivalent to 5,323 ppm Li2CO3 assay or 0.53% Li2CO3
Li = Lithium Metal, ppm = parts per million
The data confirms the discovery of a readily soluble non-hectorite mineral form of lithium-rich claystone, with grades that well exceed other Clayton Valley sediments and brines, has been found at surface over wide areas of Cypress' Clayton Valley property. The lithium-rich mineralization is contained within calcareous evaporite rocks, dominantly carbonate rich lake-bed claystones with interbedded volcanic ash units.
Cypress is moving forward at this time with mineral Identification (ID) by X Ray Diffraction (XRD) being conducted at the University of British Columbia. The Company is further advancing bench scale studies of using a plain water, non-acid leach and additional very dilute acid leach methods in an advancing effort to develop a low cost mining and environmentally friendly lithium (Li) extraction method for the claystones at Cypress' Clayton Valley Project.