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Show IMITATION JEWELS Nature is often copied with conspicuous conspic-uous success by those engaged in the imitation of precious jewels Zircons are composed of silica and ziconia. Their luster is deceptive, a means having been discovered of extracting the color, thus leaving th"m diamonds to all appearances, although their falseness promptly proclaims itself when put to a test. Precious stones are often dyed with ;uch thoroughness and cleverness that, it Is asserted, the stone may be broken without discovery discov-ery of the process, that is to say, by the uninitiated. In Oberstein, Germany, the sole industry in-dustry is the manufacture of Imitation Imita-tion jewelry and the dyeing of chalcedony chal-cedony and other stones. The onyx, carnelian. bloodstone and agate may be enriched in color by immersion In the dyepot. The stones are placed in vessels containing the coloring matter and are then subject to great heat for periods varying from a few hours to a week or more In rhe case of chalcedony chalce-dony which shows bands of different degrees of intensity, certain of the hands take the color and others do not. The stones then receive a further furth-er stewing In pots containing other dyes. Flourspar is capable of great improvement im-provement in tint when subjected to a heating process and cmcidolite is given a hue of blood red by a similar I method. The emerald and the catseye are of f all stones the most easily imitated One family at Oberstein is said to H possess the secret of converting cruci- f5v dolite into catseye. Catseye also may 1'; be made of aragonite, some of the hornblends, and even of fibrous gyp- B- sum. jr ' ' |