EMERY, in natural history, a rich iron-ore found in large masses of no determinate shape or size, extremely hard, and very heavy. It is usually of a dusky brownish red on the surface; but when broken, is of a fine bright iron-grey, but not without some tinge of red.
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ness; and is spangled all over with shining specks, which are small flakes of a foliaceous tale, highly impregnated with iron. It is also sometimes very red, and then usually contains veins of gold. It makes no effervescence with any of the acid menstrua, and is found in the island of Guernsey, in Tuscany, and many parts of Germany.