Looking for Lithium: from rocks in Rajasthan to laboratories in Western Australia

<p>Electric vehicles are the future. But here&#39;s the problem: India&#39;s lithium demand is skyrocketing, but the local supply is nearly zero. Enter pegmatites: fancy, crystal-studded rocks hiding in the Rajasthan desert that might just hold the key to India&#39;s battery revolution.Today we&#39;re back with Dr Louise Schoneveld and Dr Mario Iglesias-Martinez from CSIRO to tell the complete story of the CSIRO&#39;s Australia-India research partnership on critical metals, centering here on lithium exploration. And boy we cover it all. From fieldwork in India&#39;s desert landscape to the analytical work happening in Western Australian laboratories, it&#39;s a tale involving unexpected geological encounters, shepherd guides, sparkly purple minerals, and the kind of detective work that makes the journey from field to lab the best kind of science.From pegmatite formation theory (yes, there&#39;s a debate, of course!) to the geochemistry that helps you sort the lithium-rich rocks from lithium-poor ones, this episode digs into what happens when you find a promising rock in Rajasthan and bring it home to Australia for detailed analysis, and its all part of a larger collaboration to tackle a global supply chain challenge.🎯 This episode:💎 Why pegmatites are fancy granites with bigger crystals (and what makes them really fancy)🔋 India&#39;s lithium challenge: massive demand, almost no domestic supply🏜️ Exploring Rajasthan: a region previously mined for tin and tungsten, now reimagined for lithium🪨 Two competing theories of pegmatite formation, and why it matters which one is right👀 The Clevelandite moment: how a feldspar on a roadside sparked a breakthrough🧪 Geochemistry in the field: reading element ratios to find the fertile pegmatites🤝 Fieldwork as collaboration: Indian Institute of Technology researchers and good science📍 For a bit of background - these are the main lithium and related minerals we talk about on the episode: - Lepidolite (bright purple lithium-bearing mica; stunning) - Spodumene (chunky lithium silicate with crystals measuring centimetres) - Clevelandite (the sodic feldspar that started it all)Funded by the Australian Government, the India-Australia Critical Minerals Research Partnership ran from January 2023 to 30 June 2026, advancing sustainable and environmentally responsible critical minerals development for the benefit of both nations.🔗 Find us:📺 @theGeoCo on YouTube📻 Wonder on Spotify🐦 @theGeoCo on TikTok📸 @theGeoCo on Instagram📬 Geoco News on Substack: thegeoco.substack.com🙏 We acknowledge the Kaurna people of the Adelaide Plains, on whose country the Wonder podcast is made.— Holly, Anthony &amp; the CSIRO team</p>