That’s salt — we couldn’t live without it. Salt is a mineral. It’s really difficult to mention “minerals” without your listener’s eyes glazing up and I get that: had I been better at mineralogy in the 1980s, I’d have gone into geology, not medical transcription (but I loved that, too).
This excellent post from earlier in the year by Dr. Eric Klemetti presents minerals in a way that cuts through the eye glazing to give you a geologist’s plain-English view of minerals and their connection to us (and other life on Earth).
On Earth, there are thousands of minerals not seen anywhere else in the Solar System. Why are we so special?
Featured image: Ruth Hartnup, CC BY 2.0