Mineralogy’s link to ecology makes an Earth twin unlikely
Life not the same without the rocks
![California’s Mono Lake](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/12/ti_monolake_chris-chabot-flickr-free.jpeg?fit=860%2C460&ssl=1)
THE RARE EARTH About 22 percent of minerals exist in only one locality, including a Hazenite, a phosphate mineral named for mineralogist Robert Hazen that’s made only by microbes found in California’s Mono Lake (shown).
chris.chabot/Flickr (CC BY-NC 2.0)