Figure 2

Raman spectra of standard pigment lead tin yellow type II. Raman spectra of lead tin yellow type II and cassiterite (SnO₂) in the range of 50–2000 cm⁻¹ with one detail of spectra variation observed in the region around 633 cm⁻¹: 2a) and 2b) lead tin yellow type II (Kremer No. 10120); 2c) mineral cassiterite (SnO₂). Detail: Raman spectra of all pigments in the region of 200–1000 cm⁻¹, in the spectrum 2b Raman band at 635 cm⁻¹ is visible that indicates the presence of mineral cassiterite (SnO₂).