Chemical Properties
monoclinic, a=0.506 nm, b=0.867 nm, c=0.471 nm; used to make η-alumina catalyst [KIR78]
Physical properties
Habit: fine fibers.
Color: colorless.
Luster: silky.
Diaphaneity: translucent to transparent.
Streak: white.
Occurrence: precipitates of aluminum hydroxide gels onto carbonates at
pH > 5.8.
