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AQUAMARINE (Lat. aqua marina, " water of the sea "), a transparent variety of beryl (q.v.), having a delicate blue or bluish-green colour, suggestive of the tint of sea-water. It occurs at most localities which yield ordinary beryl, some of the finest coming f ...

AQUITAINE, the name of an ancient province in France, the extent of which has varied considerably from time to time. About the time of Julius Caesar the name Aquilania was given to that part of Gaul lying between the Pyrenees and the Garonne, and its inhabitan

... ut 60 m. N.E. of Ekaterinburg, where they occur in mica-schist, associated with aquamarine, alexandrite, phenacite, &c. Emerald is found also in mica-schist in the Habachthal, in the Salzburg Alps, and in granite at Eidsvold in Norway. Emerald has been worked ...

... the mineral is colourless. When cut it resembles EUCLID certain kinds of beryl (aquamarine) and topaz, from which it may be distinguished by its specific gravity (3-1). Its hardness (7-5) is rather less than that of topaz. Eudase occurs with topaz at Boa Vista ...