This man-made jewel is unique in that is displays the optical phenomenon of color change. Although this is not a natural phenomenon, it is an affordable alternative to rare and expensive color change gems, such as alexandrite. You can observe color change in this jewel by viewing it interchangeably in natural and incandescent light.
Color Change Classification
||Color Change |
Color Change Characteristic Physical properties
||Color change glass can have mold marks, concave facets, rounded facet edges and display the orange peel effect. Glass stones often have gas bubbles, flow lines and they might show cavities on the surface. |
The term cat's eye, or chatoyancy, is used to describe a phenomenal optical property in gemstones, in this case man-made glass. The effect, when present, appears as a bright, narrow slit similar to the pupils in the eyes of your favorite feline. This phenomenon is caused by parallel fibrous or needle-like inclusions that interfere with the passage of light through the crystal, scattering and reflecting light back to the viewer as a thin line.Although in this case the phenomenon is not natural, it offers an affordable alternative to this rare phenomenon seen with some natural gems.
Cat's Eye Classification
||Cat's Eye |
Cat's Eye Optical Properties
Cat's Eye Characteristic Physical properties
||Cat's-eye glass will have a honeycomb structure when viewed from the side if the cabochon. Stones might have gas bubbles, swirl marks, flow lines or a reflective base. |