Page 468 - Copper and Bronze in Art: Corrosion, Colorants, Getty Museum Conservation, By David Scott

TABLE 25 X-RAY DIFFRACTION DATA FOR TRIPPKEITE AND TWO SAMPLES
OF SCHEELE'S GREEN FROM THE FORBES COLLECTION

TRIPPKEITE SCHEELE'S (JREEN SCHEELE'S (jREEN
(ICDD 31-0451 FROM THE F ORBES FROM THE F ORBES
COLLECTIOr J C O L L E C T S 1
(1 FA-NYU samp e) (GCI sample) c
j j j
d-spacing Intensity Intensity d-spacing Intensity d-spacing

6.07 55 100 10.3 30 4.61
4.30 14 10 4.66 20 4.18
3.84 8 20 4.48 30 4.03
3.40 3 5 4.02 100 3.11
3.16 100 20 3.46 10 2.79
3.04 45 20 3.11 1 2.69
2.79 6 80 2.713 1 2.62
2.72 35 10 2.500 70 2.49
2.53 15 5 1.773 60 2.39
2.44 1 5 1.693 10 2.31
2.38 1 10 1.571 1 2.13
2.34 35 30 2.08
2.26 15 60 1.95
2.19 3 1 1.70
2.15 1 30 1.67
2.08 2 30 1.64
2.05 2 20 1.47
2.00 7 10 1.44
1.95 35 20 1.39
1.92 7 30 1.33
1.82 3
1.81 2
1.72 1
1.70 11
1.67 14
1.64 25
1.47 10
1.44 14
1.39 16

a
Courtesy of the Smithsonian Institution, Washington, D.C.
k Institute of Fine Arts, New York University (Weber Forbes).
c
Forbes Sadder Gallery Collection 9.06.7.