Rubis Zoïsite (Anyolite) 20 unakite - Thermal (bull's eye is

- Thermal (bull's eye is a heated tiger's eye)

it can discolor and leave yellow marks in the drill hole that goes through the stones

Hawk's eye can be confused with:

regular Cleavage: None Polariscope: Opaque (rarely translucent) Refractive index: 1

Rubis Zoïsite (Anyolite) 20 unakite - Thermal (bull's eye isRuby zoisite cabochon. Color: Here the zoisite part is in the majority Shape: Drop Size: 46. 66 x 31. 78mm Weight in grams: 16. 98g Carat weight: 84. 92 carat Country of origin: Tanzania Gemological information about anyolite: Note: The name anyolite is a trade name. It refers to a rock composed of 3 minerals: zoisite (green), ruby (pink red) and amphibole (black). This stone is also found under the name ruby zoisite. Density: Between 3. 15 and 3. 38