Of course, it is purple, because there is no cat's eye effect. If it's a cat's eye, it's doubtful. You can get a cat's eye effect under the light.

Shuzulai belongs to sodalite, also known as sujilite, which is a silicon-iron-lithium-sodium silicate compound. It is a new ore discovered by Japanese geologists in 1960. It is composed of many mineral elements, the main element is silicon dioxide, and the crystal belongs to hexagonal system, with hardness of about 5.5~6.5 degrees and rich layers. It is a commercial variety of South African gemstones.

Precautions and points for attention when comfortable:

Only purple is sphalerite, while white or light color is not sphalerite or contains only a small amount of sphalerite, because sphalerite often coexists with pectin stone, aegirine stone, timely and so on. Someone once took a batch of sugilite to the provincial inspection to make a jewelry appraisal certificate. White or too light in color refused to issue an appraisal certificate on the grounds that the content of sugilite was not enough.

The pink variety which is extremely expensive in the market has a low content of sugilite. The texture should be delicate, moist and transparent, and the less impurities, stone lines and cracks, the better. Because translucent and colored sphalerite is rarely produced, it is expensive. The sphalerite component in translucent white or light-colored substances is questionable. Fine and clean are all good qualities.

Reference to the above content: Baidu Encyclopedia-Shu Quanlai