Art: Toad-Tiger

As every schoolboy knows, most jade is green. Yet jade when pure is white. It is made green by an admixture of other minerals, usually chromium. And it may in fact be any one of three very hard minerals: nephrite, jadeite and chloromelanite. Properly cut jade will give out a clear musical tone when struck.

Most jade comes from upper Burma and southeastern Turkestan. In the western hemisphere it is found in its natural state only in Alaska. Of cut jade five very fine specimens have been found in Mexico. One is now...

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