51�Թ�

It is sometimes known as “Uralian emerald,” a rather unfortunate name inasmuch as true emerald is found in the Urals, whilst it not infrequently passes in trade as olivine.

Lithia emerald is the mineral called hiddenite; Uralian emerald is a name given to demantoid; Brazilian emerald is merely green tourmaline; evening emerald is the peridot; pyro-emerald is fluorspar which phosphoresces with a green glow when heated; and “mother of emerald” is generally a green quartz or perhaps in some cases a green felspar.