pigment

TERRY KING (KINGNAPOLEONPHOTO@compuserve.com)
Sat, 24 Jan 1998 04:58:22 -0500

Message text written by Nze christian
>ivory black is animal carbon or char bone

mars black is ferrous oxyde (perhaps it will react with K..)
<

Ivory balck takes longer to dry and is weak; Mars black seems to have a
tendency to adversly affect surrounding colours, even more than most
blacks, unless it is used only for very short exposures for deep shadow
detail. In general it is better to avoid the use of black; use Neutral Tint
instead.

Terry King