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Fresh Thinking by Snowden Optiro

by Snowden Optiro

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Latest episodes

EP 178 | Inferred Resources in Mine Planning: Practice vs Reporting

October 7, 2026 · 20 min

Inferred Mineral Resources are the lowest-confidence Mineral Resource category, but what role should they play in mine planning? In this episode of Fresh Thinking, Tarrant Elkington is joined by Allan Earl, Executive Consultant at Snowden…
EP 177 | Rethinking Grade Control: When Ordinary Kriging Isn't Enough

October 1, 2026 · 19 min

When does ordinary kriging stop being the best approach for grade control? In this episode of Fresh Thinking, Ian Glacken, Executive Consultant, and Dr Gregory Zhang, Senior Consultant at @SnowdenOptiro , explore direct SMU estimation…
EP 176 | Evolving Air Quality Regulations: A Catalyst for Electric Machine Adoption

September 23, 2026 · 9 min

Changing workplace exposure limits could become an important driver of battery electric vehicle adoption in underground mining. In this episode of Fresh Thinking by ‪@SnowdenOptiro‬, Hamish Guthrie is joined by Sarah de Vries to discuss…
EP 174 | Platinum: Is It Worth Its Weight in Gold?

September 10, 2026 · 11 min

Platinum is one of the world's rarest and most geographically concentrated metals, with applications spanning the automotive, industrial, jewellery and emerging hydrogen sectors. But what does its evolving supply and demand outlook mean…
EP 173 | The Theory of Sampling: Why Every Mining Decision Begins with a Representative Sample

September 2, 2026 · 8 min

Was the sample representative? Every geological model, resource estimate, grade control decision and reconciliation result ultimately depends on the quality of the samples behind it. In this episode of Fresh Thinking by Snowden Optiro…

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EP 172 | Tailings Are Not Just Relocated Ore: The Nuances of Tailings Mineral Resource Estimates

August 26, 2026 · 13 min

Tailings Mineral Resource Estimates can appear straightforward. The material has already been mined, crushed, processed and deposited in one location — but tailings facilities present their own unique set of technical challenges. In this…
EP 171 | Part 2 of 2: Managing Uncertainty - How Better Grade Control Leads to Better Decisions

August 19, 2026 · 7 min

In Part 2 of our Fresh Thinking by @SnowdenOptiro two-part series, host Melanie Bully is joined by Senzeni Matondi to continue the discussion on why the most expensive mistake in grade control isn't necessarily mining low-grade material…
EP 175 | Why Resource & Reserve Reconciliation Matters

August 17, 2026 · 21 min

In this episode of Fresh Thinking by Snowden Optiro, Rayleen Hargreaves, Principal Consultant at Datamine and Product Owner of Reconcilor, talks with Ian Glacken, Executive Consultant at Snowden Optiro, about the importance of reconciling…
EP 170 | Part 1 of 2: Why the Most Expensive Mistake in Grade Control Isn't Low Grade

August 12, 2026 · 5 min

What if the most expensive mistake in grade control isn't mining low-grade material — but making the wrong decision about what is ore and what is waste? In this two-part episode of Fresh Thinking by Snowden Optiro, Senzeni Matondi…
EP 169 | Why Good Estimates Can Still Produce Poor Reconciliation

August 6, 2026 · 7 min

If your resource model is statistically robust, why doesn't it always reconcile with production? In this episode of Fresh Thinking by Snowden Optiro, Melanie Bulley and Senzeni Mandava Matondi explore why good resource estimates can still…
EP 168 | When Geology Isn't Enough - Using Categorical Indicator Kriging to Model Diffuse Mineralisation

July 29, 2026 · 9 min

How do you model mineralisation when geological boundaries aren't clearly defined? In this episode of Fresh Thinking by @SnowdenOptiro , Senior Consultant, Melanie Bulley is joined by Principal Consultant, Senzeni Matondi to explore how…
EP 166 | What Consultants See That Mine Sites Miss: Lessons in Mine-to-Mill Reconciliation

July 1, 2026 · 12 min

What do consultants see that mine sites often miss? In this episode of Fresh Thinking bySnowden Optiro, Rayleen Hargreaves is joined by Ian Glacken to discuss the most common mine-to-mill reconciliation challenges, from stockpile…

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About the show

News and information from the world of geology and mining, Fresh Thinking by Snowden Optiro provides a new perspective on the mining industry and seeks to educate on best practice. Snowden Optiro is a resources consulting and advisory group that provides independent advice, consulting and training to mining and exploration companies, their advisors and investors. We help mine developers to advance their projects, mining companies to improve their operations and their professionals, and investors to derisk their investments by the provision of quality advice, training and software in the field of Mineral Resources and Mineral/Ore Reserves. contact@snowdenoptiro.com www.snowdenoptiro.com Snowden Optiro Mining Advisory Consulting, Software and Training.