根据显微镜下、红外光谱和X射线衍射的研究，表明块状水钙铝榴石玉的主要矿物成分是水钙铝榴石，并有含量不等的透辉石和方解石等。
The study on massive hydrogrossular by means of polar microscope, infrared spectra and Xray shows that it consists mainly of hydrogrossular, with a little amount of diopside and calcite.
不倒翁有两种，一种为水钙铝榴石玉，另一种为玉髓蛋白石玉。
Budaoweng has two kinds, one is hydrogrossular, the other is chalcedony-opal.
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