zaffre

Ores found in Saxony and Connecticut -- combined with arsenic, zaffre and smalt -- composition and use of the latter -- use of cobalt in colouring glass and pottery -- nitrate of cobalt a fine sympathetic ink.

Outlines of the Lectures on Chemistry, Mineralogy, & Geology, Delivered at the University of North-Carolina, for the Use of the Students. [1]-44 p. 1819

The Saxon mines have till very lately almost exclusively supplied the rest of Europe with cobalt, or rather with its preparations, zaffre and smalt, for the exportation of the ore itself is there a capital crime.

The Botanic Garden A Poem in Two Parts. Part 1: the Economy of Vegetation Erasmus Darwin 1766