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Table 2 Summary of XRD, XRF, and Raman results of pigment analyses

From: The occurrence of a titanium dioxide/silica white pigment on wooden Andean qeros: a cultural and chronological marker

Owner/qero ID Stylistic period Color Principal phases (XRD) Principal elements (XRF) Raman peaks
AMNH B1847 TI/EC White Cristobalite, anatase, α-quartz Si, Ti 633, 518, 391w, 144
Private collection 1 TI/EC White Cristobalite, anatase, α-quartz Si, Ti NA
Private collection 2 TI/EC Pink Cinnabar, cristobalite, anatase, α-quartz Hg, S, Si, Ti NA
MMA 1994.35.12 TI/EC White Cristobalite, anatase, α-quartz Si, Ti NA
MMA 1994.35.14 TI/EC White Cristobalite, anatase, α-quartz Si, Ti NA
Museo Inka 230 TI/EC White Cristobalite, anatase, α-quartz Si, Ti NA
NMAI 15/2412 TI/EC White Cristobalite, anatase, α-quartz Ti 638, 145
NMAI 15/2413 TI/EC White Cristobalite, anatase, α-quartz Ti 637, 516, 397, 146
NMAI 15/2413 TI/EC Pink Cinnabar, gypsum, anhydrite Hg, S, Ca NA
NMAI 21/7453 TI/EC White Cristobalite, anatase, α-quartz Ti 634, 518w, 391w, 144
NMAI 10/5860 TI/EC White Cristobalite, anatase, α-quartz Ti 635, 507w, 384 w, 144
NMAI 10/5860 TI/EC Pink Cinnabar, cristobalite, anatase, α-quartz Hg, Ti NA
NMAI 20/0236 TI/EC White Cristobalite, anatase, α-quartz Ti 642, 144
NMAI 25/1492 TI/EC White Cristobalite, anatase, α-quartz Ti 638, 517, 396, 144
MMA 1994.35.13 Colonial White Cerussite, hydrocerussite Pb NA
MMA 1994.35.17 Colonial White Cerussite, hydrocerussite Pb NA
MMA 1994.35.26 Colonial White Cerussite, hydrocerussite Pb NA
Private collection 3 Colonial White Cerussite, hydrocerussite Pb NA
  1. TI/EC Transitional Inka/Early Colonial, W weak peak, NA not analyzed