Which mineral, with the formula Fe3S4, is incorporated into the shell?
Answer
Greigite
Beyond the more common iron sulfides like pyrite and marcasite, researchers have identified that the shell of the scaly-foot gastropod can incorporate greigite, which has the chemical formula Fe3S4. This inclusion demonstrates the flexibility of the snail's biomineralization processes, which can adapt to the local chemistry of the hydrothermal vent. The ability to integrate such specific and varied mineral compounds into a biological structure highlights the complex and highly specialized evolutionary adaptation of this deep-sea creature.
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