Biological processes may be responsible for most of Earth's mineral diversity
In short: Researchers who tracked the history of planetary minerals found that Earth's geological variety is a product of complex evolution. While early solar system dust contained only about a dozen minerals, processes like volcanism and plate tectonics expanded that number to 1,500 species. However, the study suggests that biological activity may be the primary driver behind the vast majority of the 4,300 minerals known today.
This research frames mineralogy as a dynamic process driven by the concentration of elements and extreme physical conditions. The study highlights how life creates far-from-equilibrium conditions that irreversibly transform surface mineralogy. A limitation is that the paper focuses on the progression of mineral evolution rather than providing a specific chemical catalog of every biological mineral.
Why it matters: Life doesn't just inhabit the planet; it actively shapes the geological diversity of the world we see.
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Sources
- Summary by Intellect · source: Research: Hazen et al. (2008). Mineral evolution. American Mineralogist.
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