20 - Coarse gold sampling and assaying
Play • 16 min

It is visually very attractive, but getting an accurate grade for coarse gold isn't straight forward. If you've used the wrong techniques, your estimate could be way off. World expert in this field Simon Dominy joins Optiro's Director of Geology Ian Glacken to discuss what you could do to make sure you're reporting the right grade from your samples.

In this episode:

1:15 Let's clarify - what is coarse gold? 2:58 What deposits in Australia are classified as coarse gold? 4:06 It's visually appealing, but what are the downsides of coarse gold and what is the nugget effect? 6:32 What issues are there with assaying coarse gold? And what are some of the techniques? 11:18 What are remote assaying techniques and what are the opportunities for that? 12:47 What are the things you can do if you've got a coarse gold problem? 14:44 Are there any other places to read more about coarse gold?

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