rose gold rope chain Classification and Evaluation of Nephrite

1. Divided by output geological environment

Aberdeen jade: It is formed from the original nephrite mineral deposits transported by weathering to the river. Generalmente, it is pebble-like, with smooth surface, good roundness, and a layer of skin on the outside, with small blockiness.

Jade de montaña: A primary ore produced on the mountain, it is characterized by sharp edges and corners, rough texture, large block, and often inferior to the quality.

Mountain and flowing water: It is between aberdeen jade and mountain jade. It has a larger lumpiness than aberdeen jade, slightly rounded, and has a smoother surface. The quality is slightly better than that of mountain jade, second only to aberdeen jade.

2. Dividido por color

White jade: El color es blanco, may be slightly gray, and the texture is fine. The high-quality one ismutton jade”, which is very rare.

Sapphire: Nephrite with gray-green hue, the most common.

Cyan white jade: The color is between white jade and sapphire.

Jaspe: Green-dark green.

Topaz: Yellow-beige, the best one is yellow like Yanli, very rare.

Sugar jade: The color is similar to brown sugar, mainly brown, marrón, rojo, etc..

Moyu: Also called black jade. Refers to the nephrite jade whose color is pure black, jet black, and dark gray, with pure black being the best.

Flower jade: refers to a piece of jade that has multiple colors, is properly distributed, and constitutes a certain shape and pattern, such astiger skin jade” y “variegated jade”.

The basic quality evaluation of nephrite jade has a recognized dimension in China. Actualmente, the technical requirements and economic evaluation basis of nephrite raw materials in China’s arts and crafts circles and jewelry industry can be summarized as: three good plus one degree, eso es, buena textura, good color, and good gloss. And there is a certain degree of blockiness.

Good texture: Nephrite raw materials are required to be tough, fine and flawless.

Good color: It is required to be bright in color, pure and free of noise.

Good gloss: It is required to achieve bright gloss and no porcelain (eso es, the gloss phenomenon of porcelain).

Lumpiness: It requires a certain quality.

The cleaning and maintenance of nephrite is relatively simple: Nephrite can be cleaned with a mild neutral solvent and stored separately to prevent collision, polvo, and corrosion.

 

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