Page 219 - Copper and Bronze in Art: Corrosion, Colorants, Getty Museum Conservation, By David Scott

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P L A T E 51 Wall painting from the tomb of Queen
Nefertari, Valley of the Queens, Egypt (ca. 1255
B . c . E . ) . Egyptian green was used to paint the
wings of the attendant. This painting, located on
the stair wall, east side of the upper tier of the
tomb, is shown after final conservation treatment.

P L A T E 52 Photomicrograph of a prepared sample
of Han blue, showing intense blue particles under
bright-field illumination (magnification X325) .

P L A T E 53 Octagonal pigment stick of Han purple,
Chinese, : L 3 cm.

P L A T E 54 Photomicrograph of Han purple from
a painted bronze vessel, Chinese, Han dynasty
(206 B . c . E . - 2 2 0 C E . ) . The sample is viewed under
partially crossed polars (magnification χ 4 2 θ ) .
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P L A T E 55 Polarized-light photomicrographs of two
different verdigris samples: , distilled verdigris;
A
and B , basic verdigris (both at magnification X325).
P L A T E 56 Photomicrograph of basic verdigris,
showing different crystalline phases. Upper portion
of the image reveals very fine acicular pale crystals
with some irregular larger clumps and long tabular
crystals. The lower portion shows blue crystals of
neutral verdigris with acicular, light green basic
verdigris salts. Viewed under partially crossed
polars (melt-mount R I 1.662, magnification x325).

P L A T E 57 Photomicrograph of basic verdigris
under partially crossed polars (melt-mount R I 1.662,
magnification χ325).

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