Episodes

The Rocks Meet Wall Street with Dave Lawie & Sam Scher 16.06.2026 1:20:13

A conversation on geochemistry, mining finance, and why technical risk remains one of the most overlooked factors in project valuation and success. Read More

When Domain Expertise Meets Mathematics: Rethinking Data Levelling with Pedro Acosta-Gongora & Tom Carmichael 19.05.2026 1:39:39

A cross-disciplinary panel bringing geochemists and statisticians into conversation to examine what “levelled” really means and where practical workflow corrections align with, or diverge from, statistical best practice. Read More

From Evidence to Origin: Solving Mysteries with Isoscapes with Gabe Bowen 15.04.2026 46:53

In this episode of GeOCHemISTea, Sam sits down with Gabe Bowen to explore the world of forensic isotope geochemistry and the power of isoscapes. Read More

Beyond Bulk Geochemistry: Cobalt, Nanoparticles, and Surface Processes with Owen Missen 18.03.2026 55:30

This episode of GeOCHemISTea explores cobalt cycling, critical metals, and why geochemists need to think beyond bulk chemistry to understand how elements behave in surface environments. Read More

Fit-for-Purpose Geochemistry and Fewer Bad Programs with Simon Bolster 20.02.2026 1:16:08

Simon Bolster joins GeOCHemISTea to unpack what actuallymakes near-surface geochemistry work in mineral exploration: understanding regolith and landforms before you ever “put dirt in bags.” With four decades in gold exploration, Simon argues that many programs fail not because geochemistry is “bad,” but because sampling and analytical choices do not match the terrain,the cover, or Read More

From Geomet to the Mill: Breaking Down Silos with Mohsen Yahyaei 22.01.2026 1:07:08

This episode discusses how artificial intelligence is transforming research and education, exploring practical applications, opportunities and challenges across academic and scientific fields. Read More

Volcanoes, Mush and Mineralization with Mike Stock 22.12.2025 1:00:10

In this episode of GeOCHemISTea, Sam talks with Mike Stock, Professor at Trinity College Dublin, about magma systems from eruption to emplacement. Read More

The mineralogy hidden in your assays with Scott Halley 18.11.2025 1:00:47

This month on GeOCHemISTea, Sam sits down with Scott Halley to talk about extracting meaningful mineralogy from standard four-acid assay data. Read More

Geochemistry Without Borders: A Conversation with Alecos Demetriades 16.10.2025 53:27

Alecos Demetriades, applied geochemist and Chair of the IUGS Commission on Global Geochemical Baselines (2024–2028) Read More

Geochemical exploration in low sulfidation epithermal systems with Simon Griffiths 10.09.2025 56:06

Simon Griffiths breaks down geochemical strategies for low-sulfidation epithermal systems, roscoelite vectors, sampling workflows, and real-world exploration lessons from Porgera. Read More