NOT KNOWN FACTUAL STATEMENTS ABOUT CRYSTAL

其它描述：《庶物异名疏》中说： �?水精出大秦国，一名黎�?�?。结晶完整的水晶晶体，就如参差交错的马齿，所以人们又叫它马牙石。先民们最早用它研磨成眼镜片，因而送它一个眼镜石的绰号。水晶有通称，也有俗称。广州一带称水晶叫晶玉，又名鱼脑冻；�

CeF�?crystals really should be taken care of with care to stay away from mechanical stress and contamination. They can be processed working with normal crystal progress techniques and should be stored in a very dry environment to circumvent humidity absorption.CeF�?crystals are largely Employed in optical units necessitating substantial radiati