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Table 2 Raman spectral parameters: positions (xD and xG), full width at half maximum (ωD and ωG) and intensity ratio (ID/IG) of D and G bands

From: Identification of carbon-based black pigments in four South American polychrome wooden sculptures by Raman microscopy

   xD (cm−1) ωD (cm −1) xG (cm−1) ωG (cm−1) ID/IG
References  
 Graphite GRZ 1,351 ± 3 188 ± 18 1,598 ± 1 67 ± 2 0.78 ± 0.13
 Lampblack LBZ 1,357 ± 2 215 ± 7 1,585 ± 2 104 ± 4 0.91 ± 0.06
 Bistre BSZ 1,360 ± 3 334 ± 13 1,578 ± 4 116 ± 5 0.85 ± 0.09
 Bitumen BTZ 1,394 ± 3 299 ± 11 1,603 ± 2 102 ± 3 0.79 ± 0.06
 Ivory black IBZ 1,358 ± 2 274 ± 5 1,593 ± 2 102 ± 4 0.94 ± 0.09
 Commercial charcoal CWC 1,345 ± 2 258 ± 4 1,594 ± 1 75 ± 3 0.74 ± 0.08
 Van Dyck VDK 1,381 ± 4 237 ± 10 1,593 ± 3 106 ± 6 0.70 ± 0.13
 Earth of Kassel EKZ 1,382 ± 3 228 ± 7 1,592 ± 2 98 ± 3 0.63 ± 0.10
Samples  
 Saint Gregorius Magnus SGM8 1,378 ± 6 455 ± 20 1,587 ± 2 117 ± 4 0.67 ± 0.09
 The Trinity TRI8 1,357 ± 3 271 ± 9 1,593 ± 2 84 ± 3 0.75 ± 0.10
 Saint Lion the Pope SLP6 1,365 ± 4 412 ± 28 1,602 ± 2 134 ± 10 0.95 ± 0.12
 Saint Benedict the Black SBN1 1,374 ± 3 226 ± 9 1,580 ± 3 118 ± 4 0.82 ± 0.15
  1. Data for reference pigments were published in [12].