Dear all: I have observed (SEM) this crystal (Figure ARSE-2) in bauxite red mud. EDX: Si, Al and O. It is a quartz or aluminum silicate crystal?

My main doubt is if it is a crystal of quartz, maybe with Al particles attached, or a polyedral alumino silicate crystal. EDX showed that the components are Si, Al and O. Someone have any idea...

28 August 2016 9,586 18 View