Atomic weight, 725; sp. gr., 546; meltingpoint, about 900 degrees C. A rare element, of which little is known, and described as both metallic and nonmetallicthat is, on the borderland. It is of a crystalline character, and is said to combine with the alkaline hydrates forming compounds corresponding to silicates. There is an oxide, a chloride, and a sulphide.

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Definition of  GERMANIUM