Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) Hematite structure showing Fe—Fe distances of Blake et al.40 (b) Uranium incorporated hematite showing U—Fe distances obtained from EXAFS fitting of the 105 °C data. Subscript notation indicates the polygon sharing relationship: F = face; E = edge; C = corner. Redrawn after Cornell and Schwertmann.28
