14 July 2022 | ASX RELEASE | |
only | Metallurgical Testing Program Underway | |
Ravensthorpe Lithium Project | ||
Highlights | ||
• Bulletin is undertaking preliminary diagnostic metallurgical | ||
testwork of spodumene bearing pegmatites from its | ||
Ravensthorpe Lithium Project | ||
use | • Composite samples from three separate pegmatites are being | |
analysed for response to gravity and/or flotation process | ||
pathways to establish indicative recoveries and marketable | ||
product potential including: | ||
o determining whether it is processable via conventional | ||
means | ||
o | potential recovery rates | |
personalFor | o indications of upgrade potential | |
o | deleterious elements, if any | |
o geo-metallurgical properties
o determining the potential for generating a saleable product
o whether the ore has capacity to be treated in nearby processing facilities
• The composite samples were selectively collected and may not represent true grade of the pegmatite. Drilling will be required to provide samples to characterise the pegmatites, which will provide for more definitive metallurgical and product specifications including grade
Chairman
Paul Poli
Chief Executive Officer
Mark Csar
Non- Executive Directors
Robert Martin
Daniel Prior
Neville Bassett
Company Secretary
Andrew Chapman
Shares on Issue
-
million shares
Listed Options
- million
Unlisted Options
- million
Top Shareholders
Goldfire Enterprises | 23.6% |
Top 20 Shareholders | 46.1% |
Market Capitalisation $32.18 million @ 11 cents
Bulletin Resources LimitedASX : BNR Suite 11, 139 Newcastle Street, Perth, WA 6000 I PO Box 376 Northbridge WA 6865 I phone (08) 9230 3585 www.bulletinresources.com
For personal use only
Bulletin Resources Limited ("Bulletin", "BNR") is pleased to provide an update on its 130km2 Ravensthorpe Lithium Project. The project is located only 12km southwest and along strike of Allkem Limited's (ASX: AKE) Mt Cattlin Lithium Mine.
Indicative Metallurgical Testwork Program
BHM Process Consultants Pty Ltd (BHM) have been engaged to undertake indicative diagnostic metallurgical testwork to investigate the potential for generating saleable lithium concentrate from spodumene bearing pegmatites at Bulletin's Ravensthorpe Lithium Project. The testwork program is expected to take up to 10 weeks to complete. Bulletin will publish these preliminary results as they come to hand.
BHM will investigate the material's response to gravity and/or flotation process pathways to identify indicative recoveries and marketable product potential, including:
-
determining whether it is processable via conventional means o potential recovery rates
o indications of upgrade potential o deleterious elements, if any
o geo-metallurgical properties
o determining the potential of generating a saleable product
o whether the ore has capacity to be treated in nearby processing facilities
The preliminary diagnostic metallurgical testwork includes assessment of three hand selected composite samples taken from spodumene bearing outcrop and lag pegmatite taken along the Eastern Pegmatite Trend. A composite sample of outcropping pegmatite wall rock (waste rock) was also collected. The samples were selectively collected and may not represent true grade of the pegmatites and the samples will be blended for metallurgical testwork. Drilling will be required to characterise the pegmatites for grade and size as well as to provide samples for more definitive metallurgical process options and product specifications including grade. Sample locations are shown in Figure 1.
Other Exploration Works Underway at Ravensthorpe
Works towards drilling and expanding the potential of the Ravensthorpe Lithium project continue to be progressed. In addition to this metallurgical testwork, Bulletin's environmental consultants, Tetris Environmental Pty Ltd have completed their initial assessment of the proposed drilling program and are working towards obtaining regulatory approvals with DMIRS.
The LIDAR and high-resolution imagery survey flights were completed last month, and Bulletin is expecting results of this work shortly with results to be released to market as the interpretations come to hand.
For personal use only
Figure 1: Metallurgical testwork sample locations, spodumene locations, pegmatite locations and rock
chip assays above 2.0% Li2O. (refer ASX announcements dated 24 January 2022, 17 & 21 February 2022 and 21 March 2022)
Pegmatite | Sample ID | MGA94E | MGA94N | Sample Type |
Big | RB001 | 769944 | 6272222 | Lag/subcrop |
SW of Big | RB002 | 769294 | 6272081 | Outcrop |
Deep Purple | RB003 | 770529 | 6274662 | Outcrop |
Deep Purple | Wall Rock | 770529 | 6274662 | Outcrop |
Table 2: Location of metallurgical samples
For personal use only
Figure 2: Bulletin's Ravensthorpe Lithium Project location
This ASX report is authorised for release by the Board of Bulletin Resources Limited.
For further information, please contact:
Paul Poli, Chairman
Phone: +61 8 9230 3585
Competent Persons Statement
The information in this report that relates to Exploration Targets and Exploration Results is based on information compiled by Mark Csar, who is a Fellow of The AusIMM. The exploration information in this report is an accurate representation of the available data and studies. Mark Csar is a full-time employee of Bulletin Resources Limited and has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2012 Edition of the 'Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves'. Mark Csar consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.
r personal use only
JORC 2012 Table 1.
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
Criteria | JORC Code explanation | Commentary | |
Sampling | • | Nature and quality of sampling (eg cut channels, | Approximately 20kg of mineralised and wall rock bearing pegmatite were taken |
techniques | random chips, or specific specialised industry | by chipping and/or hand collecting material from each sample site. A further | |
standard measurement tools appropriate to the | approximate 50kg sample of dominantly pegmatite wall rock was taken from | ||
minerals under investigation, such as down hole | Deep Purple using the same method. | ||
gamma sondes, or handheld XRF instruments, | The composite samples are not considered representative of the larger | ||
etc.). These examples should not be taken as | |||
limiting the broad meaning of sampling. | pegmatite packages due to the subjective nature of rock chip sampling. The | ||
• | Measures taken to ensure sample representivity | samples will be weight-grade composited by metallurgical consultants to derive | |
and the appropriate calibration of any | a head grade comparable to mill feed of some nearby mining operations prior to | ||
measurement tools or systems used. | metallurgical evaluation. | ||
• | Aspects of the determination of mineralisation | ||
that are Material to the Public Report. In cases | |||
where 'industry standard' work has been done this | |||
would be relatively simple (eg 'reverse circulation | |||
drilling was used to obtain 1 m samples from | |||
which 3 kg was pulverised to produce a 30 g | |||
charge for fire assay'). In other cases more | |||
explanation may be required, such as where there | |||
is coarse gold that has inherent sampling | |||
problems. Unusual commodities or mineralisation | |||
types (eg submarine nodules) may warrant | |||
disclosure of detailed information. | |||
Drilling | • | Drill type (eg core, reverse circulation, open-hole | N/A, no drilling. |
techniques | hammer, rotary air blast, auger, Bangka, sonic, | ||
etc.) and details (eg core diameter, triple or | |||
standard tube, depth of diamond tails, face- | |||
sampling bit or other type, whether core is | |||
oriented and if so, by what method, etc.). |
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Bulletin Resources Limited published this content on 13 July 2022 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 13 July 2022 23:33:02 UTC.