AM_Spinel_513
Formula:
Al1.834 Mg.995 Cr.162 Mn.002 Zn.007 O4
Name:
Spinel
Unit cell:
8.108 8.108 8.108 90.0 90.0 90.0 , V=533.02
Space group:
FD3M (227)
Martignago F , Dal Negro A , Carbonin S , Physics and Chemistry of Minerals , 30 (2003) p.401-408, How Cr3+ and Fe3+ affect Mg-Al order-disorder transformation at high temperature, in natural spinels, Sample: H-Cr, 1st run, T = 25 C