top of page

Impact Minerals Limited (ASX: IPT) has a Low Cost HPA story in Western Australia

Updated: Jun 16, 2023

✦ Find out all about a Western Australian High Purity Alumina (HPA) project with Dr. Mike Jones, Managing Director of Impact Minerals Limited (ASX:IPT).

Doing Your Own Research (DYOR) is an important skill to cultivate for keen investors, as CEO of Samso, Noel Ong always says. And here is a High Purity Alumina (HPA) story to build those DYOR muscles as it requires an understanding of a whole different pool of facts.

If this is the first time you're hearing Dr. Mike Jones share the HPA Story, you may feel that it sounds like a rather simple project. While that may not be off the mark, it's worthwhile taking a second look, and going deeper. For Noel, this is one of those projects that is niche enough to make it work. In fact, this HPA story gives a whole different complexion to Impact Minerals. The company is embarking on a very different journey.

Venture Minerals on REE

Listen to Dr. Mike Jones here:

00:00 Start

00:20 Introduction

01:37 The Impact Minerals Limited story.

06:28 HPA - Potential big player in the industrial minerals market.

09:19 The deposit and metallurgical process of extracting HPA.

12:13 What is special about the Lake Hope Project?

18:49 The assay results in Lake Hope.

21:15 What is 4N high purity alumina?

23:50 Advantages and challenges of the alumina deposit.

28:07 The chemistry consistency of alumina grades.

31:27 The competitive advantage of Lake Hope area.

32:45 The challenges of being in the HPA space.

35:06 A low cost producer of HPA.

37:29 News flow.

40:29 The advantage of leapfrogging the discovery phase.

44:32 Why Impact Minerals Limited?

47:26 Conclusion

Impact Minerals' new project is almost ready for the production story. They are finalising the drilling to produce the all important JORC Mineral Resource which will be the first step in cultivating a production story.

Impact Minerals is no new kid on the block. In fact, it has projects that would be considered major ones in other ASX companies. The projects they've got that are interesting to look at are the Broken Hill and the Arkun project.

Broken Hill Project

The Broken Hill project is a Ni-Cu-PGE project (Figure 1 and Figure 2) located 20km from the world class Broken Hill silver-lead-zinc mine in New South Wales. The geology at the Broken Hill project is one that has a lot of possibilities which is what companies want from a project.

Impact has shown that the very high grade palladium and platinum mineralisation at the Red Hill, Platinum Springs and Moorkaie Prospects and the Iron Oxide Copper Gold (IOCG) mineralisation at the Copper Blow Prospect (ASX:SCI) are hosted by and related to alkaline magmatic rocks (Figure 2), (ASX Announcement 13th December 2018).

 Figure 2:  Location of alkaline magma trends in the Broken Hill area. The Little Broken Hill to Moorkaie Trend contains rocks of potassic ultramafic to alkaline gabbro composition. The Copper Flat to Staurolite Ridge Trend contains rocks of alkaline gabbro to carbonatite composition. An offset of the Copper Blow Trend is interpreted to the south of the Thackeringa Fault Zone. (Source:  Impact Minerals Limited)| Coffee with Samso | Brilliant-Online

Figure 2: Location of alkaline magma trends in the Broken Hill area. The Little Broken Hill to Moorkaie Trend contains rocks of potassic ultramafic to alkaline gabbro composition. The Copper Flat to Staurolite Ridge Trend contains rocks of alkaline gabbro to carbonatite composition. An offset of the Copper Blow Trend is interpreted to the south of the Thackeringa Fault Zone. (Source: Impact Minerals Limited)

Arkun Project

The Arkun project (Figure 3) which covers about 850 square kilometres is between York and Corrigin, which is approximately 100 km east of Perth. The project was first identified as an area of anomalous nickel-copper-gold anomalies in publicly available regional geochemistry data sets.

It is now considered to be in a mobile belt that is prospective for "Julimar" type mineralisation. The discovery of Julimar has now opened up this whole region.

A subsequent interpretation of regional magnetic data by Impact has identified the area as lying within a major deformation zone or mobile belt that trends NW-SE from the Moora-Julimar-Yarawindah area through Arkun and which may contain deformed and metamorphosed equivalents of those rocks. This belt is generally not recognised in many regional geology maps and yet is self-evident in the magnetic data. This is a significant breakthrough in understanding for Impact Minerals Limited.

The BHP Xplor Program

Impact Minerals was recently chosen to participate in the BHP Xplor program with their Broken Hill project. The participation is a recognition of the quality of the project and the amount of good work completed by the company. To be selected is a testament of something positive as companies are required to submit a good number of projects in order to be considered.

Lake Hope HPA Project

This will change the future of Impact Minerals Limited.

Lake Hope Project covers numerous prospective salt lakes between Hyden and Norseman in southern Western Australia, a Tier One jurisdiction (Figure 4). The project covers about 238 sqkm and are all owned by the vendor, Playa One.

The Lake Hope area has unique climatic and geological characteristics that have resulted in the formation of what is probably a globally unique deposit of aluminium-rich material within the surficial clay layers of two small salt lakes, or “pans”, in the Lake Hope playa system.

The lake clays, which are only up to a few metres thick, have unique chemical and physical properties and consist almost entirely of aluminium-bearing minerals that are plasticine-like in consistency and can be easily sampled with hand-held augers and push tubes (Figure 5).

In addition, particle size distribution analysis demonstrates that virtually all the minerals are less than 16 microns and 60% to 80% occur at grain sizes of less than 5 microns (Figure 6).

These unique characteristics have produced a near-perfect mineral deposit: a very high-value end product whose parent ore is:

  • Very soft and shallow, allowing for extremely cheap free-digging with limited infrastructure requirements, no pre-stripping, no selective mining, a tiny environmental footprint, and limited rehabilitation requirements.

  • Naturally fine-grained with no need for crushing and grinding, allowing for transport to an offsite processing facility that can be built on existing industrial sites (Figure 4). In essence, this is Direct Shipping Ore (DSO).

  • Comprised of a few minerals that require only simple washing before acid leaching, thus allowing for low-cost straightforward metallurgical processing.

Samso's Conclusion

The change in business for Impact makes a lot of sense. The introduction of the Lake Hope project will move Impact Minerals into the production part of the industry very quickly. As we all know, in the exploration game, discovery of an economical resource is very difficult. The path to production is another hurdle many small juniors will never cross.

What Noel likes about Impact are their "Other" projects. There is a lot he likes about the new HPA label. However, one cannot discard the potential of the Broken Hill and also the Arkun projects. There is hard-to-measure value in the potential of these projects.

Noel has always considered the HPA as too hard. However, after listening to Mike sharing his thoughts and strategy with the Lake Hope project, he is changing his narrative. He has not really looked into the details but he has got some idea now.

Simplistically, the HPA story appears to be about processing. The mining part seems to be easy. This is what he took away from listening to Mike, and his confidence, for Noel, comes from the fact that Lake Hope is a unique deposit. It is one of those projects that tick the boxes that we all dream about.

When you look at this project Lake Hope, what Noel sees is that, at this stage of the game, Impact has been lucky. They got this project which appears to have all the hallmarks of a "Perfect Project". Yes, we all know about the things that can and will go wrong with the path to production, but when you listen to Mike speak about the ups and downs, you will come to the same thought - "Could this be true?".

When the time comes where we get the answer to that question, Noel would rather be in the group that has the position to lose than the group that is fighting for a position. His philosophy has always been that he would rather lose something than regret not being able to win.

Welcome to the Mineral Exploration game. Remember the golden rule - always DYOR.


About Dr Mike Jones


Dr Jones completed undergraduate and post-graduate studies in Mining and Exploration Geology at Imperial College, London. His Ph.D work on gold mineralisation saw him move to Western Australia in 1988 to work for Western Mining Corporation exploring for gold and nickel deposits in the Yilgarn.

From 1994 he consulted to the exploration and mining industry specialising in the integration of geological field mapping and the interpretation of geochemical, geophysical and remotely sensed data for target generation.

Dr Jones has worked on over 80 projects both in greenfields and near mine exploration in a wide variety of mineralised terrains and was the founding director of Lithofire Consulting Geologists in Perth, Australia.

He was also the team leader during the discovery of a significant gold deposit at the Higginsville Mining Centre, near Kalgoorlie and an iron ore deposit near Newman, both in Western Australia.

About Impact Minerals Minerals Limited

Impact Minerals logo

Impact Minerals Limited (ASX: IPT) is an exploration company listed on the ASX in November 2006.

The Company manages extensive tenement holdings (>4,000 km2) within Australia featuring significant potential for high-grade mineral deposits of gold, silver, lead, zinc, copper, nickel and PGMs.

The Directors of the Company have extensive experience in mineral exploration and a strong history of exploration success, business development and corporate management.

Impact Minerals intends to build wealth for its shareholders through a vigorous campaign of project generation and evaluation with the aim of building profitable mining operations.

Contact Impact Minerals Limited

a/ 9 Richardson Street, West Perth, Western Australia 6005

f/ (61 8) 6314 6670



This article is sponsored content.

ASX companies engage Samso and Brilliant-Online to share their commentary on the progress of their companies and projects. The author, owners of Samso and Brilliant-Online and associated entities may or may not hold shares of these companies.

The information or opinions provided herein do not constitute investment advice, an offer or solicitation to subscribe for, purchase or sell the investment product(s) mentioned herein. It does not take into consideration, nor have any regard to your specific investment objectives, financial situation, risk profile, tax position and particular, or unique needs and constraints. Read full Disclaimer. - Samso

About the Author

Noel Ong, CEO of Samso tells compelling stories by engaging business leaders to reveal insights beneficial to the investment community.

Contact Samso

Samso helps executives tell ASX stories that pique interest.

t/ +61 490 092 814


Advertise with Brilliant-Online

✦ Brilliant-Online is the only publication that offers a single interactive multichannel advertising package.

✦ The purpose of Brilliant-Online is to push for a better world in the digital era.

✦ Brilliant-Online is an empowering read for progressive individuals and dynamic businesses.

✦ For all enquiries about advertising with Brilliant-Online, please contact us here.


bottom of page