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Heritage Science
Fig. 4 | Heritage Science

Fig. 4

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

Fig. 4

Raman spectra of white pigmented resin sample from Transitional Inka/Early Colonial qero NMAI 15/2413 (bottom), “Giacomo Deposit” ore (middle), and a reference sample of anatase (top) with diagnostic anatase peaks labeled. The “Giacomo Deposit” ore sample also exhibits a peak 231 cm−1 and a shoulder at 417 cm−1 that are consistent with cristobalite

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