Example Sentences

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The first practical use of cobalt was in the form of zaffre or cobalt blue.

From De Re Metallica, Translated from the First Latin Edition of 1556 by Agricola, Georgius

The ore of cobalt, called zaffre, is found in several parts of Europe, but chiefly in Saxony.

From Heads of Lectures on a Course of Experimental Philosophy: Particularly Including Chemistry by Priestley, Joseph

Dissolve zaffre, in powder, in aqua regia, for twenty-four hours.

From Endless Amusement A Collection of Nearly 400 Entertaining Experiments by Unknown