Artists' Colours Therefore Vitrification Does Not Impart
:
ON THE PRIMARY, BLUE.
permanence.
The grittiness to which we have referred is one of the defects of smalt,
which cannot, consistently with preserving its colour be entirely freed
from that drawback--an objection which pertains to vitreous pigments in
general. Hence it does not wash well, and in mural decoration is
sometimes applied to work by strewing the dry powdered colour upon a
flat ground of white or blue oil paint immediately after the latter is
laid on, whilst it yet remains wet. Of little body, it is a vivid and
gorgeous blue; bright, deep, and transparent, bordering on the violet
hue. It is chiefly employed in illumination and flower painting. The
inferior kinds of smalt are occasionally adulterated with chalk.
TTITLE CYANINE.