Page 471 - Copper and Bronze in Art: Corrosion, Colorants, Getty Museum Conservation, By David Scott

TABLE 28 DEBYE-SCHERRER POWDER X-RAY DIFFRACTION DATA 3 FOR EMERALD
GREEN PIGMENT FROM CHRIST'S ENTRY INTO BRUSSELS IN 1899 BY
JAMES ENSOR COMPARED WITH DATA FOR COPPER ACETATE-ARS EN ITE

JAMES ENS OR'S COPPER JAMES ENS OR'S COPPER
EMERALD ( 3REEN ACETATE-i \RSENITE EMERALD ÜREEN ACETATE-i \RSENITE
<
(ICDD 31-48 8) continued (ICDD 31-48 8)

Intensity d-spacing Intensity d-spacing Intensity d-spacing Intensity d-spacing
100 9.6 100 9.71 20 2.707 80 2.71
10 6.7 25 6.76 30 2.679 90 2.68
3 5.4 5 5.36 5 2.639 9 2.63
5 4.83 9 4.86 4 2.606
8 4.67 11 4.70 60 2.564 20 2.58
70 4.53 100 4.53 10 2.477 25 2.48
10 4.14 8 2.408 60 2.41
60 3.95 95 3.93 5 2.250 65 2.25
10 3.73 5 3.71 5 2.191 17 2.18
45 3.49 80 3.48 4 2.132 10 2.12
10 3.36 55 3.38 15 1.915
40 3.29 70 3.28 5 1.704
10 3.105 8 3.18 5 1.628
40 3.067 60 3.07 5 1.566
5 2.965 10 2.98 5 1.383
30 2.820 4 1.362
20 2.753 55 2.73

Nickel-filtered copper k-alpha radiation: 10 hours exposure; 30 kV, 40 mA.
1
'James Ensor (Belgian, i860-1949), Christ's Entry into Brussels in 1889,1888, collections of the J. Paul Getty Museum (87.PA.96). See P L A T E 63.

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