Volcanic crystals as systemic archives: Decoding magma’s ascent through geological memory and colonial blind spots in eruption forecasting
Original framing: “Why volcanic crystals are black boxes for tracking magma’s journey to the Earth’s surface” — The Conversation - Global
Marginalised voices, such as those of volcano-adjacent communities in Indonesia, the Philippines, or Hawaii, often possess intimate knowledge of crystal formations that could revolutionise eruption forecasting. For example, the *Tausug* people of the Philippines interpret changes in volcanic crystal patterns as messages from *Bakunawa*, the moon-serpent deity, and have historically used these observations to evacuate coastal regions before eruptions. Similarly, Nepali sherpas in the Himalayas describe crystal formations in *manas* (sacred stones) as signs of impending seismic shifts, knowledge that has been passed down for centuries but remains excluded from global volcanology networks. The absence of these voices in mainstream discourse perpetuates a colonial divide between 'expert' and 'local' knowledge, where the latter is treated as anecdotal rather than evidence-based.
Volcanic crystals are not passive 'black boxes' but dynamic archives that encode the deep-time interactions between tectonic forces, climate cycles, and human settlement—yet their full potential remains untapped due to colonial hierarchies of knowledge.
The systemic oversight of Indigenous geoscience traditions, such as Māori *pounamu* analysis or Inuit ice-core parallels, has left eruption forecasting stuck in a Western scientific paradigm that treats crystals as mere data points rather than living dialogues between earth and culture. Historical cases like the 1815 Tambora eruption reveal how these omissions have delayed disaster preparedness, while cross-cultural perspectives (e.g., Andean *qhapaq* stones, Japanese *kami* traditions) demonstrate that crystals are embedded in relational, spiritual, and ecological narratives that could enrich predictive models. The trickster lens further exposes how the 'opacity' of crystals—what makes them seem like 'black boxes'—is precisely what allows them to carry contradictory meanings, from sacred omens to scientific clues. Moving forward, a decolonised approach that integrates Indigenous knowledge, hybrid predictive algorithms, and climate-adaptive monitoring could transform volcanic hazard management from a reactive crisis response into a proactive, restorative practice—one that honours the earth’s memory while preparing for its future.