Latest Episode
July 15, 2026
Reading the Surface: How Minerals Reveal Water, Dust, and Hidden Earth Processes with Brenda Bowen
This episode explores how surface mineralogy and spectroscopy reveal fluid flow, dust transport, and groundwater processes across modern landscapes.
More Podcast Episodes
June 17, 2026
The Rocks Meet Wall Street with Dave Lawie & Sam Scher
For Episode 51, the tables are turned as Imdex Chief Geologist and Technologist Dave Lawie takes over hosting duties and puts Sam…
May 20, 2026
When Domain Expertise Meets Mathematics: Rethinking Data Levelling with Pedro Acosta-Gongora & Tom Carmichael
For our 50th episode of GeOCHemISTea, we’re doing something a little different... a panel discussion that brings together two very different perspectives…
April 16, 2026
From Evidence to Origin: Solving Mysteries with Isoscapes with Gabe Bowen
In this episode of GeOCHemISTea, Sam sits down with Gabe Bowen to explore the world of forensic isotope geochemistry and the power…
March 19, 2026
Beyond Bulk Geochemistry: Cobalt, Nanoparticles, and Surface Processes with Owen Missen
This episode of GeOCHemISTea explores cobalt cycling, critical metals, and why geochemists need to think beyond bulk chemistry to understand how elements…
February 20, 2026
Fit-for-Purpose Geochemistry and Fewer Bad Programs with Simon Bolster
Simon Bolster joins GeOCHemISTea to unpack what actuallymakes near-surface geochemistry work in mineral exploration: understanding regolith and landforms before you ever “put…
January 22, 2026
From Geomet to the Mill: Breaking Down Silos with Mohsen Yahyaei
In this episode of GeOCHemISTea, host Sam Scher engages in a thought-provoking conversation with Professor Mohsen Yahyaei, a mineral processing engineer and…
2024 Episode List
December 11, 2024
The Sci-Fi and Facts of Orogenic Gold with Rich Goldfarb
In this episode of GeOCHemISTea we dive into the origins of orogenic gold deposits with Rich Goldfarb, exploring the science behind fluids,…
November 13, 2024
Exploring with pXRF and LIBS with Steve Tambanis
For this episode, Steve delves into the practical challenges and breakthroughs in using portable XRF and LIBS technology for field-based geochemistry. He…
October 9, 2024
Upscaling pyrite chemistry with 4-acid data with Aidan Kitchener
Let's learn about upscaling LA-ICP-MS pyrite results to whole rock geochemistry data using principal components analysis (PCA). On the way we'll hear…
September 11, 2024
Geochemical exploration for greenstone gold deposits with Simon Griffiths
We talk about Simon's transition from working from large mining companies to opening his own consultancy for all those considering this as…
August 14, 2024
Seeing porphyries in a new light with Cristal Palafox
This is our second episode on GeOCHemISTea where we have branched out from geochemistry into a sister geoscience - spectral geology. For…
July 10, 2024
Analytical Geochemists & Instrumentation with Alan Koenig
Herein we present a general microanalytical technique rant, at least three soap boxes (my favorite being "I want to also rant about…
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