Page 446 - Copper and Bronze in Art: Corrosion, Colorants, Getty Museum Conservation, By David Scott

TABLE 7 X-RAY DIFFRACTION DATA FOR A GREEN BEAD FROM DOS CABECAS,
LA MIÑA, PERU, COMPARED WITH REFERENCE DATA FOR TURQUOISE
AND FAUSTITE

SAMPLE 3 TURQUOIS Ε FAUSTITE

Intensity 4 Θ Θ d-spacing d-spacing Intensity d-spacing Intensity
10 26.41 6.6025 6.70 6.7 7
20 28.76 7.19 6.16 6.17 7 6.14 7
10 37.02 9.255 4.79 4.8 6
100 48.39 12.0975 3.68 3.68 10 3.68 10
20 51.86 12.965 3.44 3.44 7 3.44 6
20 54.79 13.6975 3.26 3.28 7 3.28 6
2 57.79 14.4475 3.09
50 61.43 15.3575 2.91 2.91 8 2.89 8
10 71.36 17.84 2.52
10 79.02 19.755 2.28
10 81.28 20.32 2.22
2 83.6 20.9 2.16
2 6.04 21.51 2.10
2 88.28 22.07 2.05 2.05 7
2 90.38 22.595 2.01 2.02 6
2 95.66 23.915 1.90

G C I Lab no. 2 HIR S BI .

X - R A Y D I F F R A C T I O N S T U D I E S
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