Brown foliated crystals to 1.2cm in a radial group. The Ferroericssonite is associated with red Gillespite and some Titantaramellite. All of my minerals from Rush and Big Creek barium-silicate deposits were identified by Robert Walstrom. Plus many of the minerals come with a signed Robert Walstrom label. This one comes with a sighned Walstrom label. This is an excellent specimen.