Certain hides with a satin finish are smoothed by a rotating agate stone.
用玛瑙石在皮革表面旋转打磨，使其表面光滑亮丽。
The stone used includes jade of many kinds such as emerald, coral, white jade, agate, rose quartz, etc.
所用玉石有很多种，如翡翠，珊瑚，白玉，玛瑙，石英石等。
The genetic types of queer stones include primary grape agate, Gobi stone formed through water flowing and weathering, Desert stone formed in saline lake in desert.
其成因类型有原生的葡萄玛瑙、次生改造的戈壁石和沙漠盐湖形成的沙漠石。
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