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Minerals Reveal a New Understanding of Original Life on Earth

A new approach to mineralogy attests to mineral diversity and could advance scientists’ understandings about life on Earth and other planets.

BySam Walters
Nature has used 21 different ways over the last 4.5 billion years to create pyrite (aka Fool’s Gold) -- the mineral world’s champion of diverse origins. Pyrite forms at high temperature and low, with and without water, with the help of microbes and in harsh environments where life plays no role whatsoever.Credit: ARKENSTONE/Rob Lavinsky

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Quartz, diamond, calcite and pyrite are a few of the most famous mineral "species,” according to traditional systems of classification. Yet, two papers published in American Mineralogist have advanced a new system to categorize minerals – one that considers mineral structure and the circumstances of mineral formation.

This new approach demonstrates the diversity of the substances on our planet, and advances scientists’ understandings of life on our own planet, as well as the potential for life on others.

Sorting minerals according to their structure and their origins is a substantial shift in the field. “No one has undertaken this huge task before,” says co-author Robert Hazen in a press release, a staff scientist at the Carnegie Institution for Science’s Earth and Planets Laboratory, which will undoubtedly create novel understandings about life on Earth.

In classifying minerals according to their formation, for instance, the team found that the mineral diversity of ...

  • Sam Walters

    Sam Walters is the associate editor at Discover Magazine who writes and edits articles covering topics like archaeology, paleontology, ecology, and evolution, and manages a few print magazine sections.

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