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汉语拼音：yè là shí

质地滑腻如玉的石质矿物。化学成分为al2［si4o10］(oh)2。常为致密块状、叶片状、鳞片状等集合体。磨后有强蜡状光泽，摩斯硬度1～2，易雕刻加工。呈白色、微黄、浅绿等色。较著名的有寿山石、青田石和昌化石等。常用于雕刻印章和工艺品，也用于造纸、陶瓷、橡胶等工业部门。

• Qingtian stone is one of the four famous chop stone of China, belonging to pyrophyllite category carving stone.

  青田石是中国四大名印石之一，属于叶蜡石类雕刻石。

• The deformation properties of pyrophyllite powder compact after peak stress were changed from strain softening to ideal plasticity .

  相比于粉压叶蜡石峰后从应变软化转化为理想塑性，天然叶蜡石表现出相对的脆性。

• Development Direction of Pyrophyllite Utilization in Zhejiang Province

  浙江省叶蜡石开发利用发展方向

• An experimental investigation on mechanical properties of the pyrophyllite in conventional-triaxial compression

  叶蜡石常规三轴压缩下力学性能的实验研究

• Heating Phase Transformation and Evolutionary Characteristics of Pyrophyllite

  叶蜡石加热相变及其演化特征

• Study on Beneficiation of Pyrophyllite Applied in Manufacture of Stress Conducting Sealing Material for Diamond Synthesis

  人造金刚石传压密封材料用叶蜡石提纯研究

• Pyrophyllite Resource and Its Utilization in Zhejiang Province

  浙江省叶蜡石资源及其开发利用

• Homogenizing Micropowder Processing of Pyrophyllite for Tank Fiberglass

  池窑玻纤用叶蜡石均化微粉加工

• Geological Characteristics of Upper Jurassic Pyrophyllite Deposits in the Shouning-Fuzhou Area

  寿宁-福州上侏罗统南园群叶蜡石矿地质特征