The pigment has been identified on a J.M.W. Turner painting which dates back to 1812.
Manufacturer / product code: Kremer / 44200
Chemical description: chromium(III)-oxide. Kremer PDF
Color Index: PG17
DOWNLOAD paper: “Pigments Checker version 3.0, a handy set for conservation scientists: A free online Raman spectra database”
DOWNLOAD paper: “FORS spectral database of historical pigments in different binders”