On the epidermis of jade raw materials, see the regular or directional arrangement of weathered and semi-weathered sand with the same or deep or light color as the epidermis, indicating the directional dynamic deterioration of the original stone. The co-strong influence of hydrothermal alteration has the potential to cause chromium to be released and green. Where there is a umbilical cord, there is not necessarily a green color. It is necessary to have a "song flower" to indicate that there may be green inside. The scales indicate that "the species" is old. The belt is generally parallel to the green direction, the green trend (pulse) or the shape of the green, mostly the primary crack is filled with chromium ions and color.
The jade skin is faintly visible like some dried mossy patches, and the plaques and strips are called "pine flowers." It refers to the green color of the original jadeite material, which has been lost by weathering. According to the depth, shape, direction, amount and density of the pine flower color, the depth, direction, size and shape of the green color can be inferred. When observing, it is necessary to study the raw materials on the raw materials.
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