The difference between black sheep fat and Lantian jet is mainly manifested in composition, texture, source and use, luster and color. Black sheep fat is a natural organic gem material, while Lantian jet is mainly composed of jadeite. The texture of black sheep fat usually presents gray-black or black basic tone, while the texture of Lantian moyu is usually more diverse; Black sheep fat is more suitable for jewelry, and Lantian Moyu is very suitable for jewelry. The luster of black sheep fat is usually fat luster or glass luster, and the luster of Lantian jet is usually oily luster or glass luster; The main color of black sheep fat is black or dark gray, while the basic color of Lantian cuttlefish is black.

1, constitute

Black sheep fat, also known as black sheep fat, is a natural organic gem material, mainly produced in Tibet. Its main component is sheep fat, which is a calcium carbonate mineral and belongs to calcite. Lantian jet, also known as jet, is a hard, dense and smooth gem material. Mainly produced in Mojiang of China and Kachin State of Myanmar. Lantian jet belongs to gem-grade nephrite, and its main component is jadeite, which is a chain silicate mineral.

2, material texture

The texture of black sheep fat is usually gray-black or black, and there may be fine gray or green stripes on the surface. These marks may be formed by other minerals or impurities, resulting in the unique appearance of black sheep fat. The texture of Lantian jet is usually more diverse. Its basic color is black, but it usually has strong green stripes, which can present unique patterns, such as moire, line pattern, bark pattern and so on.

3. Sources and uses

Because of its soft properties, black sheep fat is usually not suitable for high hardness and high wear jewelry, such as rings or bracelets. Black sheep fat is more suitable for making pendants, earrings, necklaces and other ornaments, or for decorative purposes such as ornaments and handicrafts because of its deep and soft color. Lantian black jade is very suitable for making jewelry, especially rings, bracelets and pendants, because of its relatively high hardness and smooth texture.

4. Notes

The luster of black sheep fat is usually fat luster or glass luster. Grease luster is a soft luster, similar to the luster of oil, and does not reflect strong light like some gems. Glass luster is a bright and uniform luster, similar to the crystal clear glass surface. The luster of Lantian jet is usually oily or glassy. The gloss of oil is similar to that of black sheep fat, showing a soft and silky luster effect. Glass luster is a bright luster, which can make the surface of Lantian jet reflect strong light.

Step 5 color

The main color of black sheep fat is black or dark gray, and sometimes there may be some dark brown or green stripes. On the whole, the black sheep fat is dark in color, showing a calm and low-key feeling. The basic color of Lantian Moyu is black, hence the name Lantian Moyu. Lantian moyu usually has strong green stripes, which are formed by other minerals or impurities contained in it.