85 - Cut-off Grades

In this episode, Julian Aldridge, Managing Consultant - EMEAA and Laurie Hassall - Senior Consultant, explore how cut-off grades determine mining profitability by separating ore from waste based on costs and market factors. This podcast episode at a glance:  000:05 Introduction 00:15 Definition of cut-off grade 01:00 Impact of extraction costs on cut-off grade 02:30 Other variables affecting cut-off grade 03:20 Inclusion of capex in cut-off grade 03:50 Types of cut-off grades 04:36 Calculating cut-off grade for polymetallic ores 06:40 Role of recovery rates in dynamic cut-off grade Join our experts as they explore the topic of Cut-off Grades in the episode 85 of the Fresh Thinking podcast.  If you'd like to connect with Julian or Laurie, please reach out to them at [email protected].  This video episode is also available as an audio podcast on @Libsyn, @Spotify, and @Apple Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode of Fresh Thinking by Snowden Optiro, join Senior Consultant Laurie Hassall as he delves into the intricacies of geometallurgical data and modeling. This podcast episode at a glance:  00:05 Introduction 00:15 Geometallurgical data usage 01:25 Modelling geological variability 02:35 Estimating processing metrics in block models 04:16 Assessing reliability in predictions Join our expert as he explores the topic of 'Geometallurgical Modelling' in the episode 84 of the Fresh Thinking podcast.  If you'd like to connect with Laurie, please reach out to them at [email protected]. This podcast episode also available as an audio podcast on @Libsyn, @Spotify and @Apple Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode, our experts Tarrant Elkington, General Manager and Susan Havlin, Managing Consultant - Geology, take a deeper dive into mineral resource reviews, focusing on all the important processes and considerations that enhance the accuracy and reliability of mineral resource models. This is Part 2 of a two-part series. This podcast episode at a glance:  00:05 Introduction 01:30 Mineral Resource Review of Data  02:45 Reviewing QAQC practices 03:45 Issues found in geological interpretation 04:15 Reasons for not considering geology 05:40 Key aspects of geostatistics 06:30 Focus areas in resource estimation process 07:45 Appropriate estimation methodologies 08:20 Considerations for density estimation in resource reviews 09:10 Steps involved in estimate validation 10:30 Common issues with classification 12:00 Reporting block models to the market 13:20 Findings related to RPEEE (reasonable prospects of eventual economic extraction) 14:30 Most important areas to focus on in a resource review Join our experts as they explore the topic of Key Insights into the Mineral Resource Review Processes - Part 2 in the episode 83 of the Fresh Thinking podcast. If you'd like to connect with Tarrant and Susan, please reach out to them at [email protected].  This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode, our experts provide an overview of mineral resource reviews, discussing key processes and considerations for reviewing and improving the accuracy and reliability of mineral resource models. This is Part 1 of a two-part series, with Part 2 diving deeper into each process in detail. This podcast episode at a glance: 00:05 Introduction 00:55 Experience in reviewing resources 01:15 Key aspects of resource reviews 02:05 Purpose of resource reviews 03:20  Process involved in resource reviews 04:10 Key elements to look for in a resource review 05:15 Typical outcomes of a resource review Join our experts as they explore the topic of 'Review of Mineral Resources - Overview' in the episode 82 of the Fresh Thinking podcast. If you'd like to connect with Tarrant and Susan, please reach out to them at [email protected]. This video episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode of Fresh Thinking by Snowden Optiro, join Senior Consultant Laurie Hassall as he explores the historym origins and importance of geometallurgy in optimising metal extraction and reducing risk. This podcast episode at a glance: 00:05 Introduction 00:21 Definition of Geometallurgy 01:50 History of Geometallurgy 03:10 Why Geometallurgy is popular now 05:20 Geological variability consequences 05:45 Importance of Geometallurgy Join our experts as they explore the topic of 'The History and Origins of Geometallurgy' in the episode 81 of the Fresh Thinking podcast. If you'd like to connect with Laurie, please reach out to them at [email protected].  This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode of Fresh Thinking by Snowden Optiro, join our General Manager Tarrant Elkington and Senior Geology Consultant Dr. Gregory Zhang as they discuss how resource estimation methods impact mine planning and what mining engineers should know about understanding estimation models and their limitations. This podcast episode at a glance:  00:05 Introduction  00:45 Motivation for discussing resource geology and mine planning  03:00 Common issues with resource models for mine planners  03:45 Limitations of resource models 06:45 Overview of resource estimation methods 07:30 The rule for waste inclusion in resource model  10:00 The use of recoverable resource models in resource geology and mine planning 11:20 Common issues in model preparation 14:50 Change of Support concept. 17:50 Localisation process and best practices for handovers between geologists and mine planners Join our experts as they explore the topic of 'What Mining Engineers Need to Know About Resource Estimation' in the episode 80 of the Fresh Thinking podcast.  If you'd like to connect with Tarrant and Greg, please reach out to them at [email protected].  This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode of Fresh Thinking by Snowden Optiro, join our General Manager Tarrant Elkington and Managing Consultant Susan Havlin as they delve into the crucial crossover between resource geologists and mine planning engineers, highlighting key considerations for resource geologists when delivering models to mine planners. This podcast episode at a glance:  00:05 Introduction  00:45 Motivation for discussing resource geology and mine planning  01:45 Common issues with resource models for mine planners  03:17 What it means when resource models don’t consider mining engineers  03:55 Key elements that should be included in a resource model  05:30 Managing and reducing model size effectively  07:30 The rule for waste inclusion in resource model  09:00 The use of rotated models in resource geology and mine planning 10:15 Common issues in model preparation (bugbears)  11:30 Best practices for handovers between geologists and mine planners Join our experts as they explore the topic of Key Insights for Resource Geologists When Delivering Models to Mine Planners in the episode 79 of the Fresh Thinking podcast.  If you'd like to connect with Tarrant and Susan, please reach out to them at [email protected].  This video episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode of Fresh Thinking by Snowden Optiro, tune in as our Executive Consultant Ian Glacken, Executive Consultant Andrew Scogings and Managing Consultant Susan Havlin discuss the complexities of hard rock lithium, covering key mineral variations, exploration indicators, and challenges in resource estimation and geological modeling. This podcast episode at a glance: 00:05 Introduction 01:30 Lithium minerals: Variations and significance? 02:10 Mineral characteristics: Impact on lithium extraction? 02:56 Economic viability: Role of mineralogy in lithium deposits? 03:40 Exploration indicators: Key signs for lithium? 05:00 Mineralogical studies: Contribution to resource estimates? 06:30 Assaying techniques: Effects on lithium oxide results? 07:50 Domaining challenges: Issues in pegmatite modeling? 08:30 Contaminants: Concerns in lithium estimation? 08:55 Subdomains in pegmatites: Varying lithium content? 09:54 Drilling impacts: Influence on lithium exploration? 10:30 Geological modeling: Challenges in lithium deposits? Join our experts as they explore the topic of Hard Rock Lithium in the episode 78 of the Fresh Thinking podcast. If you'd like to connect with Ian, Andrew and Susan, please reach out to them at [email protected]. This video episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts. These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode, our Executive Consultants Ian Glacken and Michael Andrew discuss the proposed JORC Code changes to the competent person's regulation. This podcast episode at a glance: 00:05 Introduction 02:11 Overview of changes 05:35 Pros and cons of the CV scheme 07:05 Validation of the CV of record and responsibility 09:10 Commodity experience for CP 10:40 Need for declaring sampling, QC, and analytical techniques in CV 11:30 Updates to CVs for each sign-off 13:10 Alternatives to resumes 15:00 Regulation and Requirements for CPD (Continues Professional Development) 17:33 Prevention of mining disasters and regulatory responses Join our experts as they explore the topic "Draft JORC Code Update: Competent Person Changes" in the episode 77 of the Fresh Thinking podcast. If you'd like to connect with Ian and Mike, please reach out to them at [email protected]. This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts.  Please look for Fresh Thinking by Snowden Optiro. These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.

In this episode, Vincent Agnello, Principal Consultant, and Shepherd Kadzviti, Head of Advisory - EMEA, discuss key aspects of mineral resource and reserve reporting for JSE-listed companies, including compliance with section 12.13, annual reporting requirements, and ensuring adherence to JSE regulations. This podcast episode at a glance: 00:10 Introduction 01:30 Overview of public reporting for JSE-listed companies 02:00 Discussion about section 12.13 02:27 Compliance requirements 03:00 Additional compliance obligations 03:30 Key aspects of annual reporting 04:40 Required brief summaries in the report 05:45 Further details required in the report 07:10 Supporting documents for the report 07:40 Post-submission process 08:00 JSE compliance verification 08:30 Feedback from JSE 09:00 Ensuring compliance Join our experts as they explore the topic "Mineral resource & reserve reporting for JSE companies" in the episode 76 of the Fresh Thinking podcast. If you'd like to connect with Vincent or Shepherd, please reach out to them at [email protected]. This podcast episode is also available as an audio podcast on @Libsyn, @Spotify, @Apple Podcasts, @Google Podcasts. Please look for Fresh Thinking by Snowden Optiro. These podcasts are for those working in the mining industry. Snowden Optiro - Mining Advisory, Consulting and Professional Development.