Page:Theophrastus - History of Stones - Hill (1774).djvu/255

 their various Colours from the Differences as well of their Properties of acting on other Bodies, as of their being ubject to be acted on by them. Some of thee they often, and others melt, and afterwards reduce to Powder; and from thee compoe the tony Maes which we receive from Aia.

CVII. But the native, which have their Ue as well as Excellence, are only three or four; the Melian, the