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Mineralogical and Gemmological Characteristics of Chrismatite in Dandong

LUAN Yachun   

  1. Gold Jewelry College,Liaoning Mechatronics Polytechnic,Dandong 118009,China
  • Received:2018-03-14 Online:2018-06-30 Published:2018-06-30

Abstract: To define the mineral components and structure of the Chrismatite,the gemological,mineralogical and spectral characteristics of the Chrismatite samples are studied by using XRD and infrared spectrometer.The results show that the Chrismatite samples are found orange,translucent,vitreousluste.Its Mohs hardness is about 7,the density is about 2.60g/cm,and RI is 1.55.The results of the comprehensive test indicate that the main mineral component of the Chrismatite samplesisquartz,and the auxiliary mineral is orthoclase.The infrared spectrum of Chrismatite samples was basically the same with the standard quartz.According to GB/T16552-2017 Gems-Nomenclature,the gem-quality chrismatite should be directly named as “Quartzosejade” and explained as trade names of gems:chrismatite in the notes.

Key words: chrismatite, quartzose jade, gemological and mineralogical characteristics, Dandong city of Liaoning province

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