clinopyroxene

Nakhlites are basaltic, similar to lavas erupting in Iceland and Hawaii today, but are rich in a mineral called clinopyroxene.

On the other extreme, the 2021 Tajogaite eruptions in La Palma, Canary Island, Spain, the mineral load was mostly feldspar, clinopyroxene and olivine -- the last one a mineral characteristic of primitive melts with little evolution from their mantle source.

The researchers looked at samples of plagioclase and clinopyroxene from eastern Quebec, Canada and found that they contain magnetic needles approximately 50 to 100 nanometers in size, surprising the researchers.