is a Calcium Tungstate with formula CaWO4 and hardness of 4.5-5
An important ore of tungsten which is a strategic metal
One of the most beautiful of all the collectors gems. The crystals are tetragonal and octahedral shaped often heavily included. Colors are for colorless, yellowish, brown orange and also violet and reddish. Deep orange without zoning is most favorite among all colors. Under short wave ultraviolet light fluoresces blue ( yellow in case of molybdenum traces).
The rough material is from Xiobang,China where is mined for the tungsten and recently is difficult to find clean big crystals
The gem here is eye clean .
Weight: 8.32 ct.