Hausmannite PL measurement, Gorobets and Rogojine 2002

Reference	Gorobets and Rogojine 2002 Gorobets B.S., Rogojine A.A. (2002). Luminescent Spectra of Minerals: Reference Book. All-Russia Institute of Mineral Resources. Moscow. - P. 265. - Fig. 23.6. https://urss.ru/cgi-bin/db.pl?lang=en&blang=en&page=Book&id=105512
Material	Hausmannite [ Mn^IIMn^III₂O₄ ] Hausmannite from Wessels Mine, Kalahari manganese fields, Northern Cape Province, South Africa © Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
Specimen temperature	Ambient
Technique	Photoluminescence (PL)
Line	Mn²⁺ 610 nm

Nominal composition of Hausmannite [ Mn^IIMn^III₂O₄ ].
Element	Atoms	At%	Wt%
Mn	3	42.9	72
O	4	57.1	28