Cudbear
Revision as of 07:01, 24 July 2013 by (username removed)
Description
A violet color natural dye obtained from lichens. Cudbear in the name given to the dye by a Scottish chemist, C. Gordon after he discovered, then patented, the process for making it in the 18th century. Previously, the dye, archil, had been produced in Italy by a secret process for several hundred years. Cudbear is the source of litmus dye.