Page:Theophrastus - History of Stones - Hill (1774).djvu/135

 few, however, are found there big enough for Seals to be engraved on: the mall ones are very numerous, inomuch that they ue them for oldering of Gold; which Purpoe they erve in the manner of Chryocolla. Some have imagined them, indeed, to be of the Chryocolla Kind, and in Colour they certainly are very like.

XLVII. The Chryocolla is found