Zircon
Locality:Astore Valley, Astore District, Gilgit-Baltistan, Pakistan
(https://www.mindat.org/loc-194232.html)
Formula:Zr(SiO4)May contain minor U, Th, Pb, Hf, Y/REE, P, and others.
Colour:Colourless, yellow, grey, reddish-brown, green, brown, black, rarely blue
Lustre:Adamantine, Vitreous, Greasy
Hardness:7½
Specific Gravity:4.6 - 4.7
Crystal System:Tetragonal
