Shu Du Lai Shi (also known as sugilite) is a kind of decoration, and it has no effect.

Shuqulaite is composed of potassium, sodium, iron, lithium and other mineral elements. But its basic element combination is silicon oxide. The hardness is between 6-6.5 and the specific gravity is 3. 12, so it also belongs to the crystal family.

The appearance of Shujulai stone is opaque purple and purplish red, even as deep as black. Royal purple is the highest quality color, and long-term wear can make the color more brilliant. Different levels of gorgeous purple, coupled with different shades, make Su Jishi cast a mysterious Leng Yan color, which is a very special gem.

Extended data:

Relevant introduction of Shujulaishi:

1973, a large sugilite was discovered in South Africa. It became a commercial variety in the 1970s. The colors of Sugilite are obvious dark blue, red purple and blue purple, and sometimes there are several different shades on ribbons and spots. Sugilite is usually yellow-brown, light pink and black, but these are rarely used in jewelry.

Generally, sugite is translucent to opaque, and gem-grade sugite is bright and translucent, which is similar to high-quality chalcedony, but it is difficult to obtain. Sphalerite has a glass-to-resin luster (waxy luster), and gems are often dotted with black, brown and blue linear manganese-containing inclusions.

As a new gem material in the jewelry market, its gem mineralogy is still blank in the research field. According to the conventional gem test, diorite samples are aggregate jade, mostly blue, purple and brown, with delicate structure. Through the analysis of electron probe and X- ray powder diffraction, it is considered that the main mineral composition of sphalerite sample is sphalerite, and it also contains impurity minerals such as silica muscovite, aegirine and timing.

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