EP 170 | Part 1 of 2: Why the Most Expensive Mistake in Grade Control Isn't Low Grade

EP 170 | Part 1 of 2: Why the Most Expensive Mistake in Grade Control Isn't Low Grade

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, Principal Consultant, joins Melanie Bully, Senior Consultant, to explore why grade control is fundamentally a decision-making discipline, not simply a grade estimation exercise.

In Part 1, Senzeni and Melanie unpack the operational and financial consequences of misclassification, including:

  • Ore loss — when valuable material is classified as waste and potentially lost forever
  • Dilution — when waste enters the ore stream, reducing head grade and consuming valuable processing capacity
  • Misclassification — and why it can result from accumulated uncertainty across sampling, geological interpretation, estimation, blast movement, survey accuracy and mining execution
  • Reconciliation — and why poor reconciliation can reflect issues across the entire mining value chain, rather than the resource model alone

The key takeaway? A technically sound grade estimate is only useful if it supports the right operational decisions.

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Jaksot(169)

EP 169 | Why Good Estimates Can Still Produce Poor Reconciliation

EP 169 | Why Good Estimates Can Still Produce Poor Reconciliation

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...

6 Elo 6min

EP 168 | When Geology Isn't Enough - Using Categorical Indicator Kriging to Model Diffuse Mineralisation

EP 168 | When Geology Isn't Enough - Using Categorical Indicator Kriging to Model Diffuse Mineralisation

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 Cons...

29 Heinä 8min

EP 166 | What Consultants See That Mine Sites Miss: Lessons in Mine-to-Mill Reconciliation

EP 166 | What Consultants See That Mine Sites Miss: Lessons in Mine-to-Mill Reconciliation

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 reconciliati...

1 Heinä 11min

EP 164 | Critical vs Strategic Minerals: Which Commodities Matter Most?

EP 164 | Critical vs Strategic Minerals: Which Commodities Matter Most?

Which commodities matter most in the global race for critical and strategic minerals? In this episode of  @SnowdenOptiro  Fresh Thinking podcast, Senzeni Mandava Matondi is joined by Julian Aldridge a...

29 Touko 5min

EP 163 | Critical vs Strategic Minerals: What's the Difference?

EP 163 | Critical vs Strategic Minerals: What's the Difference?

What makes a mineral critical? What makes it strategic? And why are governments around the world racing to secure supplies of certain commodities? In this episode of Fresh Thinking by Snowden Optiro ,...

29 Touko 10min

EP 162 | AI in Mining: Tool or Threat to Geologists?

EP 162 | AI in Mining: Tool or Threat to Geologists?

Will AI replace geologists? In this episode of Fresh Thinking by  @SnowdenOptiro , we explore how artificial intelligence is being used across the mining industry, from exploration targeting and core ...

29 Touko 22min

EP 161 | Private vs Public Mining Companies: CRIRSCO Compliance Explained

EP 161 | Private vs Public Mining Companies: CRIRSCO Compliance Explained

What are the key differences between private mining companies and publicly listed mining companies when it comes to project development, risk, and reporting? In this episode of ‪@SnowdenOptiro‬ 's Fre...

28 Touko 13min

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