Page 443 - Copper and Bronze in Art: Corrosion, Colorants, Getty Museum Conservation, By David Scott

TABLE 3 X-RAY DIFFRACTION DATA FOR CORROSION SAMPLE FROM
AN EGYPTIAN BRONZE 2

EGYPTIAN BRONZE CONNELLI TE EGYPTIAN 1 3R0NZE CONNELLI ΓΕ
CORROSIOI SI REFERENC Ε DATA CORROSIOr i REFERENC Ε DATA
(ICDD 35-53 8) continued (ICDD 35-53Í

Intensity d-spacing d-spacing Intensity Intensity d-spacing d-spacing Intensity

70 13.4 13.66 75 2.525 2
100 7.97 7.89 100 10 2.488 2.494 25
10 6.66 6.83 4 2.454 3
5.464 2 0 2 0 2.379 2.37 7
5.165 30 2.343 3
4.555 12 2 0 2.276 2.277 36
2 0 4.33 4.317 15 2.246 15
3.942 5 10 1.962 1.966 5
2 0 3.8 3.787 18 10 1.732 1.748 6
3.499 3 10 1.675 1.668 2
3.414 17 1.642 2
3.219 19 10 1.603 1.609 12
2 0 3.19 3.198 15 4 1.605 1.606 3
2.732 38 1.598 5
2 0 2.614 2.618 12 1.577 6
2.582 16

Egyptian bronze from the collections of the Fitzwilliam Museum, Cambridge, England (no. gr.i4.i93i). This blue-green corrosion was identified
a
as connellite, the complex copper-chloro-sulfate hydrated basic salt ICDD 35-538).
(

A P P E N D I X D
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