tourmaline-schist
3.such semiprecious stones as amethyst, garnet, jade, and tourmaline.
4.Studies on Characteristics, Processing and Utilization of Inner Mongolian Tourmaline
5.Discusses the of natural tourmaline material &technology used in air filtration field.
6.A mineral enclosed within another mineral, such as rutile or tourmaline in quartz.
8.For market now, we produce a lot of Tourmaline products including bracelet, necklace, pendant and etc.
9.PETROCHEMICAL AND METAMORPHIC STUDY OF QUARTZITE(SCHIST) IN INDUS-YARLUNG TSANGPO TECTONIC ZONE,NAMCHE BARWA,TIBET
10.PETROFABRIC ANALYSIS OF A SMALL VIEN-QUARTZ FOLD IN THE QUARTZ-MICA SCHIST IN WUTAI,SHANSI

