This section is from the book "The Home Cyclopedia Of General Information", by Charles Morris. Also available from Amazon: Home Cyclopedia of Necessary Knowledge.
[Span. ijada, flank.] A mineral, called also oxstone, of a greenish color, compact, and with a fatty lustre. It was believed to cure pain of the side, hence its name. Chinese jade is wrought into beautiful vases and other objects.
 
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