An obsolete varietal term for biotite.
An obsolete varietal term for biotite.
An obsolete term for manganoan muscovite.
An obsolete varietal term for glauconite.
See groutite.
An obsolete term for manganoan muscovite.
An obsolete varietal term for biotite.
An obsolete varietal term for biotite.
Manganosite, Mn1-xO, is a wustite-type oxide, isostructural with NaCl occurring in low-temperature hydrothermal environments.
An obsolete varietal term for manganoan phlogopite.
See pyrosmalite.