Clear Topaz with on Microcline Feldspar with Lepidolite Rosettes & Iron Oxide fluorite and calcite and is often used as

and is often used as a gemstone or an ornamental stone

because the color change can be reversed by removing the light source

After World War II

Colorful amazonite teardrop shaped cabochon

Clear Topaz with on Microcline Feldspar with Lepidolite Rosettes & Iron Oxide fluorite and calcite and is often used asBeautiful clear white topaz crystal on microcline feldspar with late stage small lepidolite mica rosettes. Iron oxide gives a golden hue in some areas. The occurrence for both lepidolite and nicely formed topaz crystals is chiefly, if not exclusively, in granite pegmatites. The topaz displays fluorescence with 365nm long wave ultraviolet light. size: 90 x 60 x 35 mm. 132 grams from Shigar Valley, Gilgit Baltistan, Pakistan