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Cypress Reports on Dean Lithium Claystone Solubility Results in Clayton Valley, Nevada

ID: 1479960
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(businesspress24) -
Cypress Reports on Dean Lithium Claystone Solubility Results
in Clayton Valley, Nevada

Vancouver, BC - Cypress Development Corp. (TSX-V: CYP) (OTCBB: CYDVF) (Frankfurt: C1Z1) (Cypress or the Company) is pleased to announce that the Company has received solubility study assay results from Cypress 2,700 acre Dean Lithium Brine/Claystone Project located in the heart of the Clayton Valley lithium exploration area of Esmeralda county, Nevada.

Cypress Clayton Valley Lithium Project, Nevada location map:

The Company''s Dean Project is located adjacent to producing lithium brine wells belonging to the Albemarle Silver Peak mine on its west boundary, Pure Energy''s resource area on its southwest boundary and Cypress'' Glory Project, optioned to Pure Energy, on its southern boundary.


- Cypress completes solubility studies on 48 previously assayed Dean claystone samples;
- A deionized water leach process returns 36.15% Li recovery on average;
- A modified dilute acid leach process returns 94.72% Li recovery on average;
- Permit application made to BLM, Nevada for a series of drill holes into new Frontera Verda Zone;
- Cypress anticipates drilling to begin at the end of January.

September and October 2016 surface sampling on the Dean Project has revealed a 2 square kilometer area of strong lithium mineralization up to 3,700 ppm Li (0.82% Li20 equivalent) in calcareous, volcanoclastic, claystones, mudstones and volcanic ash units. The mineralization is essentially identical to the acreage being jointly explored by Cypress and Pure Energy Minerals on Cypress Glory Project immediately to the south.

Dean sample locations and assay values map:

Cypress has now completed solubility studies with 48 previously assayed claystone samples from the Dean property. A modified dilute Aqua Regia (dilute acid) process (ME-MS41W) and a deionized water leach process (ME-MS03) has been carried out by ALS/Chemex lab in Reno, Nevada in order to provide Cypress with further data on the potential feasibility of a large-scale leach extraction method of lithium from the abundant mineralized claystone.

The additional assay procedures recently carried out on the samples by ALS/Chemex from the Dean property clearly show that the lithium in the uplifted exposed lake bed sediments is easily leached by a dilute acid solution and deionized water process.

Dean Lithium Solubility Study Assay Results:

Sample *ME-ICP*ME-MS4*ME-MS0% Li % Li
61 1W 3 Recovery Recovery
with with
Li ppm Li ppm Li ppm Dilute Aqu Water

Dean-1 1010 1010 105 100.00% 10.40%
Dean-2 1770 1720 1100 97.18% 62.15%
Dean-3 1480 1500 302 101.35% 20.41%
Dean-4 1250 1240 122 99.20% 9.76%
Dean-5 930 910 164 97.85% 17.63%
Dean-6 1130 1070 124 94.69% 10.97%
Dean-7 1560 1520 832 97.44% 53.33%
Dean-8 1720 1640 854 95.35% 49.65%
Dean-9 2090 1990 1100 95.22% 52.63%
Dean-10 830 790 195 95.18% 23.49%
Dean-22 790 750 239 94.94% 30.25%
Dean-24 2940 2780 1100 94.56% 37.41%
Dean-25 950 880 528 92.63% 55.58%
Dean-26 640 560 188 87.50% 29.38%
Dean-27 900 880 125 97.78% 13.83%
Dean-28 1350 1340 247 99.26% 18.30%
Dean-29 960 920 190 95.83% 19.74%
Dean-30 510 480 103 94.12% 20.20%
Dean-31 350 348 111 99.43% 31.71%
Dean-32 960 940 70 97.92% 7.28%
Dean-33 1440 1420 279 98.61% 19.38%
Dean-41 1100 1020 826 92.73% 75.09%
Dean-42 1030 970 634 94.17% 61.55%
Dean-43 1000 920 237 92.00% 23.70%
Dean-44 1890 1840 590 97.35% 31.22%
Dean-45 360 298 54 82.78% 15.11%
Dean-46 650 590 510 90.77% 78.46%
Dean-47 910 850 487 93.41% 53.52%
Dean-48 670 550 229 82.09% 34.18%
Dean-49 1100 1040 104 94.55% 9.41%
Dean-50 1250 1120 865 89.60% 69.20%
Dean-51 1020 960 155 94.12% 15.15%
Dean-52 1380 1400 1100 101.45% 79.71%
Dean-53 1200 1140 978 95.00% 81.50%
RKCV-00811480 1390 553 93.92% 37.36%

RKCV-00811320 1270 273 96.21% 20.68%

RKCV-00811750 1820 1100 104.00% 62.86%

RKCV-00812130 2040 1100 95.77% 51.64%

RKCV-00811000 980 298 98.00% 29.80%

RKCV-0081390 369 108.5 94.62% 27.82%

RKCV-0081780 690 280 88.46% 35.90%

RKCV-0081780 730 278 93.59% 35.64%

RKCV-00811640 1560 790 95.12% 48.17%

RKCV-00811450 1400 618 96.55% 42.62%

RKCV-0082800 760 279 95.00% 34.88%

RKCV-00821150 1050 567 91.30% 49.30%

RKCV-0082810 780 157 96.30% 19.38%

RKCV-0082570 500 196 87.72% 34.39%

94.72% AV 36.15% AV
* ME-ICP61 is a 4 acid digestion that will extract lithium from any mineral including silicates
* ME-MS41W is a highly dilute version of Aqua Regia that will dissolve carbonate minerals
* ME-MS03 is a leach method that uses deionized water to extract lithium in the sample
* Li = Lithium Metal
* ppm = parts per million
* AV = Average

Several first order drill targets have been defined on the Dean property that include extensive outcropping of altered green evaporate-rich volcanoclastic claystone / mudstone exposures known as the Frontera Verde Zone. The Frontera Verde Zone covers an area of greater than 2 square kilometers. The average lithium grade of the Frontera Verde Zone is greater than 1500 ppm Li (>0.32% Li2O).

Outcropping lithium-rich mudstones at Dean Project:
Donald Huston, President Cypress Development, stated "the results generated from the most recent assays consisting of a highly dilute weak Aqua Regia solution and a deionized water solution on the Dean Project samples has returned very encouraging results relating to the lithium recovery from the claystone that is known to exist on the majority of the Dean Project in Clayton Valley, Nevada. It is evident that the use of differing solutions in the assay procedure, as noted above, that the abundant lithium-rich claystone could be amenable to an extraction methodology that could be cost effective with a very high recovery of lithium content expected from processing. Cypress management are very encouraged with the progress seen to date and will continue with work on potential lithium extraction methods from the claystone.

All Data compiled by Cypress to date indicates that a readily soluble non-hectorite mineral form of lithium-rich claystone exists at surface over wide areas of Cypress Glory and Dean Clayton Valley projects.

Cypress has made application to the BLM, Nevada for an area of disturbance Permit to allow for a series of drill holes into the new Frontera Verda Zone on the Dean Project. The Company anticipates mobilizing a drill crew into the Clayton Valley by the end of January.

Quality Control and Quality Assurance:

All samples were submitted to ALS Chemex Labs in Reno, Nevada for analysis using a modified weak Aqua Regia (dilute acid) process (ME-MS41W) and a deionized water leach process (ME-MS03). Blind sample blanks were inserted into the sample sequences at a rate of approximately 1 per 20 samples.

Robert Marvin, PGeo, Exploration Manager for Cypress Development Corp., is the qualified person as defined by National Instrument 43-101 and has approved of the technical information in this release.

About Cypress Development Corp.:

Cypress development Corp is a publicly traded lithium and zinc exploration company that continues to acquire and develop potentially viable mineral projects in the State of Nevada, U.S.A.

Cypress is very active in Clayton Valley, Nevada with its team committed to systematically exploring its properties for both a lithium-brine resource and expanding exploration relating to the potential for a lithium resource that exists within the large area of non-hectorite claystones discovered at surface that has seen recent high lithium assays recovered from these same claystones.

Cypress Development Corp. has approx. 33.4 million shares issued and outstanding.

To find out more about Cypress Development Corp. (TSX-V: CYP), visit our website at


Don Huston

For further information contact myself or: Don Myers
DirectorCypress Development Corp.Telephone: 604-687-3376Toll Free: 800-567-8181Facsimile: 604-687-3119Email: info(at)

Suite 1610 - 777 Dunsmuir Street, Vancouver, BC, Canada, V7Y 1K4

TSX Venture Exchange Symbol: CYP
Email: info(at)
Telephone: (604) 687-3376
Facsimile: (604) 687-3119


This release includes certain statements that may be deemed to be "forward-looking statements". All statements in this release, other than statements of historical facts, that address events or developments that management of the Company expects, are forward-looking statements. Although management believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance, and actual results or developments may differ materially from those in the forward-looking statements. The Company undertakes no obligation to update these forward-looking statements if management''s beliefs, estimates or opinions, or other factors, should change. Factors that could cause actual results to differ materially from those in forward-looking statements, include market prices, exploration and development successes, continued availability of capital and financing, and general economic, market or business conditions. Please see the public filings of the Company at for further information.

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Cypress Development Corp. ist ein diversifiziertes Edel- und Grundmetallexplorations- und -erschließungsunternehmen.

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Date: 01/12/2017 - 11:05
Language: English
News-ID 1479960
Character count: 2711
Firma: Cypress Development Corp.
Ansprechpartner: Feedback to about Pressrelease-id:
Stadt: Wien


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