Manzoor Ahmad Badar, Safdar Hussain, Shanawer Niaz and Saif Ur Rehman (2017) “X-ray Diffraction Study of Aquamarine from Shigar Deposits, Skardu Valley, Northwest Pakistan ”, International Journal of Economic and Environmental Geology, 8(4), pp. 33–40. doi: 10.46660/ijeeg.v8i4.730.