fig8
Figure 8. BSE images of a liberated ((A and D), FAL 23), a partially encapsulated ((B and E), FAL 19), and a completely encapsulated ((C and F), FAL 10) REE-baring particle found in the Fire Clay material. ((A-C) and (D-F) were taken with an accelerating voltage of 20 kV and 10 kV, respectively). BSE: Backscattered electron; REE: rare earth element.
