powder technique

a process for identifying minerals or crystals; a small rod is coated with a powdered form of the substance and subjected to suitably modified X-rays; the pattern of diffracted rings is used for identification

鉱物や結晶を同定するための方法；細い棒に物質の粉末を塗布し、適切に調整されたX線を照射する；回折環のパターンを同定に用いる