A Possible New Mineral, Found on Mars

Most new mineral discoveries happen in mines, riverbeds, or diamonds pulled from deep underground. This one happened roughly 140 million miles away.

In March 2026, a research team led by Dr. Janice Bishop of the SETI Institute announced they may have identified a previously unknown mineral on Mars: an unusual iron sulfate called ferric hydroxysulfate. The team combined data from the CRISM spectrometer aboard NASA's Mars Reconnaissance Orbiter with laboratory heating experiments recreating Martian conditions to identify the mineral's unique spectral signature at two sites near the Valles Marineris canyon system — Aram Chaos and the Juventae Chasma plateau.

The working theory is that ferric hydroxysulfate formed when sulfate-rich deposits, left behind by ancient water, were later heated by volcanic or geothermal activity — meaning this single mineral could be recording two separate chapters of Martian history: a wetter past, and later heat that reshaped it. The findings were published in Nature Communications.

It's a striking reminder that mineralogy isn't limited to Earth — the same chemistry and crystal-forming processes we study in our own specimens play out across the solar system, just under very different conditions.

See the terrestrial side of mineralogy in our specimen collection.

Source: ScienceDaily, March 2026, reporting on research published in Nature Communications.

Written by Nic Scogna, a photographer and mineral collector based in Lexington, Kentucky, and the founder of Crystal Earth Gallery and Kyanite King Minerals. For over 25 years, he has traveled to mineral localities across the U.S. — from Maine to California — personally sourcing the specimens, gemstones, and photographic subjects featured here. When not out in the field, Nic writes about mineralogy, collecting, and the craft of turning raw stone into wearable art.