标签：gggem - 英国华人论坛

© 2004 gggems.com All rights reserved. PAKISTAN Tourmaline from Estaknala, located at the foot of Haramosh mount, 7 kms from Sassi. (Between Gilgit and Skardu) The Northern areas conceals treasures, such of rubies, emeralds, sapphires, aqua...英国华人论坛

© 2004 gggems.com All rights reserved. 7 systems of crystallization: There are 32 possibilities of combinations of the elements of symmetry (axis of rotation, symmetry plane, centers combined inversion and operations). Since the discovery o...英国华人论坛