Early Assay Results of Resource in-Fill Drilling at Nyngan Scandium Project - 387ppm
18.12.2014 | Accesswire
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FOUR-HOLE DRILL SCANDIUM ASSAY RESULT HIGHLIGHTS:
- Average scandium grade of 387ppm over 74 meters (200ppm cut-off),
- Average scandium grade of 510ppm over 43 meters (300ppm cut-off),
- Best results: 4 meters @ 795ppm, 7 meters @ 730ppm and 12 meters @ 580ppm,
- Best individual 1 meter assay was 843ppm,
- Lithium borate fusion (fusion) assay preparation demonstrated superior result to the traditional four acid method, as used on the resource estimate in 2010, and
- These new assay results strongly support the average grade and location selected and included in the recently released PEA on the Nyngan project.
DISCUSSION
The Company conducted and completed a 14-hole drill program in October, focused on a high grade section of the Nyngan property, selected from within the area of the measured and indicated (M&I) resource disclosed in the NI 43-101 technical report filed on SEDAR in March of 2010. This high grade zone of mostly indicated resource was the basis of a 20 year mine plan and scandium grade assumptions used in the recently released PEA on the Nyngan project. This latest drill program was designed to in-fill certain areas to 50 meter centers (from 100 meter centers), and to provide better information on pit limits as defined in the PEA. The program was conducted using a conventional rotary air core drill rig, which captured over five tonnes of chip sample material, for assay, and for fresh resource material to support ongoing metallurgical test work programs. Holes were vertically drilled, so interval widths in the results table below represent true widths.
The Company assayed these 4 new holes with both four acid digestion, and also by fusion digestion techniques, followed in each case by ICP-AES metal assays. Scandium assay results on these 4 holes are presented in this press release. The remaining 10 new holes from the October program are awaiting assay results which will be announced when available.
The Company notes that fusion digestion results generally deliver higher scandium assays than the four-acid digestion method, traditionally used in nickel and cobalt assay work. The Company believes the fusion technique generates a truer assay result, and intends to rely on and utilize fusion digestion techniques going forward to support our mine planning and advanced economic and development studies.
DRILL RESULTS DETAIL:
Hole Number & Type Interval Interval Assay Result (200ppm c/o)
From-To Total Four Acid/ Fusion/
Number Type (meters) (meters) ICP (%) ICP (%)
EMCG001 In-fill 16-27 11 178 216
32 to 44 12 407 580
including 7 502 730
EMCG009 In-fill 15 to 24 9 373 435
including 7 348 483
EMCG010 In-fill 15 to 31 16 370 495
including 11 415 568
EMCG016 In-fill 11 to 26 15 209 316
including 6 278 416
33 to 44 11 206 249
Total meters reported 74
Weighted Average Assay Result 291 387
NOTE: Interval widths represent true widths.
The assay results presented in the table above are based on a 200ppm scandium cut-off value. This assumption on scandium grade minimum is based on the Nyngan Project PEA economics, and represents an economic cut-off value to apply to resource to be mined. Assay results were taken over each meter of drilling material, and all individual interval results within the continuous intervals have been included in the summary table. Reported assay results correspond to limonite resource only; a saprolite resource underlays the limonite, is generally lower in grade, requires somewhat different processing techniques than limonite for optimal recovery, and is not planned for early extraction and processing by the Company.
The location of the 14 hole drill program is as follows:
http://www.fscwire.com/sites/default/files/NR/676/5164_scandiumimage1.png
George Putnam, CEO of Scandium International Mining Corp. commented:
“This drill result, while only partially reported based on available assays, confirms the head grade assumptions integral to the recently released PEA on the Nyngan project. The drill results validate considerable uninterrupted resource widths at these grades, continuity of resource, and good volumes at our 200ppm cut-off assumption. These results also demonstrate clearly that the Nyngan resource is very comparable to other scandium resources in the NSW lateritic belt regarding scandium grade.”
QAQC STANDARDS
SCY employed an independent local geological consulting and drill supervisory team, Rangott Mineral Exploration Pty. Ltd., (RME) of Orange NSW, Australia, to manage the drill work on-site. Bulk samples of drill returns were collected at one meter intervals from a trailer-mounted cyclone and splitter for one reported hole - EMCG-01, and a separate (RME) three-tier riffle splitter was used on site for holes EMCG-09, EMCG-10 and EMCG-16, due to moisture. Assay samples ranged from 0.4 - 4.7 kg in weight. Individual sample identifiers were cross-checked during the process. The individual assay samples were double-bagged and held in RME’s possession while in the field, prior to transport and storage at RME’s office in Orange. RME personnel checked/validated the sequence of sample numbers, and submitted the samples to Australian Laboratory Services’ (“ALS”) laboratory in Orange, NSW. The remainder of bulk samples were sealed in the field in heavy polyethylene bags and transported by RME to a secure site at Orange for long-term storage or further use in metallurgical test work.
ALS/Orange dried and weighed the received assay samples, and pulverized the entire sample to 85% passing 75 microns or better (technique PUL-21). 50 g bags of the pulps were then split off and sent to the ALS laboratory at Stafford in Brisbane, Queensland for analysis. ALS/Brisbane analyzed the pulps for scandium, nickel, cobalt, chromium, iron, magnesium, manganese, aluminum and calcium, using Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES) after a four acid digestion (technique ME-ICP61). The 4-hole results were also repeat-tested, only for scandium, using a lithium borate fusion digestion technique, followed by similar ICP-AES assay. The lower detection limit for scandium using either technique is 1ppm. RME included one commercial standard sample and three high-grade scandium pulps from previously analyzed batches, for quality control; and also included one duplicate sample from each hole in the batch. For internal quality control, ALS/Brisbane added additional standard samples (for repeat analyses), blank samples and duplicate samples to the batch.
QUALIFIED PERSONS
Willem Duyvesteyn, Director and CTO of Scandium International Mining Corp., and a QP as defined by NI 43-101, and John Thompson, VP Project Development for Scandium International Mining Corp., and a QP as defined by NI 43-101, are both Company QP’s and have reviewed this press release.
ABOUT SCANDIUM INTERNATIONAL MINING CORP.
The Company is focused on developing the Nyngan Scandium Project into the world’s first scandium-only producing mine. The Company owns a 100% interest in both the Nyngan Scandium Project, and the adjacent Honeybugle Scandium Property, in New South Wales, Australia. SCY’s interest in both Nyngan and Honeybugle can potentially be reduced to 80% in the future, based on certain current granted option rights.
The Company filed a NI 43-101 technical report disclosing Measured and Indicated Resources on the Nyngan Project in March of 2010. The Company also filed a NI 43-101 technical report on a preliminary economic assessment of the Nyngan Scandium Project in October of 2014, and has completed extensive metallurgical test work on the resource. In addition, SCY owns a 100% interest in the Tørdal Scandium/REE property in southern Norway, where we continue our exploration efforts, specifically for scandium and REE minerals.
For additional information please contact:
Scandium International Mining Corp.
Investor Relations; Ed Dickinson (CFO)
(775)-233-7328 or
George Putnam (CEO) (925) 208-1775 or
info@scandiummining.com.
No stock exchange, securities commission or other regulatory authority has approved or disapproved the information contained herein.
This press release contains forward-looking information that does involve various risks and uncertainties regarding future events. Such forward-looking information can include without limitation statements regarding the short term or long term economic feasibility of scandium production at our Nyngan scandium project, and in general, statements based on current expectations involving a number of risks and uncertainties and are not guarantees of future performance. Forward-looking information in this press release is based on estimates and opinions of management and qualified persons as defined in NI 43-101 that are providing technical services to SCY, on the dates they are made and are expressly qualified in their entirety by this notice, and by other risk factors disclosed in our public filings. Such statements include metal price assumptions, cash flow forecasts, projected capital and operating costs, metal or mineral recoveries, mine life, production rates and the results of HPAL modeling and testing. Any of these and other assumptions and forecasts may change due to reasons that impact the industry generally, such as scandium pricing, or for reasons specific to the project. Except as required by law, SCY assumes no obligation to update forward-looking information should circumstances or management's estimates or opinions change.
Cautionary Note to U.S. Investors Regarding Resource Estimates: This press release uses the terms "indicated resources" and "measured resources" which are defined by the Canadian Institute of Mining, Metallurgy and Petroleum, and are required to be disclosed in accordance with Canadian National Instrument 43-101. The disclosure standards in the U.S. Securities and Exchange Commission’s (SEC) Industry Guide 7 normally do not recognize information concerning these terms or other descriptions of the amount of mineralization in mineral deposits that do not constitute “reserves” by U.S. standards in documents filed with the SEC. Accordingly, information concerning mineral deposits set forth herein may not be comparable with information presented by companies using only U.S. standards in their public disclosure.