This heliodor beryl crystal from the Ninh Thuan Province of Vietnam. This locale contains two different mineral species including heliodor beryl. Heliodor is the yellow variety of beryl. Pure beryl is colorless and different colors like aquamarine, emerald and heliodor get their colors from trace elements included in the crystal lattice. This is a sharp six-sided heliodor beryl crystal with a rich golden color and glass luster. It is a natural and untreated. It has an irregular but natural termination. It measures 1 1/4 x 3/16 x 1/8 inches or 32 x 4 x 3mm.