The radiated colony coral fossils with distinctive patterns and colours from Turpan, Xinjiang, is of highly gemmological value.
产于新疆吐鲁番地区的一种放射状群体珊瑚化石的花纹独特，颜色多种，具有很高的宝石学价值。
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The mineralogical, gemmological and spectral characteristics of this kind of jade is studied by using the slice observation, electron microprobe and infrared spectrum.