Identification standard of Shuhuayu
This standard specifies the classification, identification elements, identification standards, grading and identification principles of Shuhua jade.
This standard is applicable to the identification of tree-shaped jade in various stone exhibitions.
Tree jade has broad sense and narrow sense. This standard refers to tree jade in a broad sense, that is, tree fossil works of art that are formed in nature, collectible, ornamental, collectible, scientific and economic. It contains the mystery of nature and the accumulation of humanity, and has the characteristics of beauty, strangeness and rarity.
Identification principle of Shuhuayu
3. The identification principle of1Shuhuayu must adhere to the basic principles of "fairness, justice and openness" and shall not be falsified. Appraisal experts must strictly abide by professional ethics, enhance their sense of responsibility and be responsible for appraisal work.
Classification of tree jade
6. 1 kind of water material, unearthed in Myanmar, has a high degree of jade, which needs to be carefully carved to reflect the delicate and narrow sense of tree jade.
2. The material is dry, the planting water is impermeable, the degree of jadeization is low, and the generalized tree jade wins by modeling.
3. Brittle substance, amber in color, transparent but not like jade, fragile and easily broken dry substance.
4. Water washes substances, which are on the surface for a long time, washed by rivers and running water, and dry substances are wrapped in mud without water.
Identification elements of Shuhuayu
5. The identification elements of1should reflect the principle of taking the integrity, beauty, charm and collection value of Shuhua jade as the general principle. It is divided into basic elements and auxiliary elements.
Basic elements: color, planting water and shape.
⒌3 Auxiliary elements: insects, vines, nodes, knots, crystals, rings, etc. Transverse cracks, impurities and purity defects; Proposition, description, meaning and rhyme, collocation.
5.3. 1 Auxiliary element A: bugs, vines, knots, knots, crystals, rings, etc.
3.2 Auxiliary element B: transverse cracks, impurities and purity defects.
3.3 Auxiliary elements C: proposition, description, meaning and rhyme, seating.
Identification standard of Shuhuayu
The quality identification of Shuhuayu can be divided into two categories. The first category is the quality identification of seed water. The second category is the quality appraisal of dry materials. Because the jadeite degree of brittle materials and water-washed materials is low,
It's also dry material.
6. Quality identification of1Shuhuayu seed water;
6. 1. 1 color recognition (full score: 35)
Chicken blood red, dark blue, green and golden yellow are the first grade.
Score 30-40 points according to the purity, vividness and distribution area ratio of its color;
Main yellow, solid color, black and floating flowers are Grade 2, and score 20-35 points;
Other dull colors are level 3, which can be scored 5-20 points.
6. Identification of1.2 kinds of water (full score: 40)
According to the proportion of good water, ice seeds can be scored 20-35 points, and other translucent and below can be scored 10-20 points.
6. 1.3 shape recognition (full score: 30)
Hollow, pictographic, mountain, long cylinder, add 20-30 points,
Other flat, thin, rectangular, fat, short cylindrical and so on. , can get 10-20 points.
[6] 1.4 bugs, vines, knots, knots, crystals, rings, etc. (Full score: 50 points)
Those who have the above performance in Shuhuayu can get 5-50 points according to their quality.
6. 1.5 Deduct points for transverse cracks, impurities and purity defects (full mark minus 15).
Those who have the above performance in Shuhuayu can deduct 3- 15 points according to the degree of defects.
6. 1.6 Proposition, description, meaning and rhyme, collocation (full mark 10).
The proposition is accurate, novel and meaningful; Description should grasp the theme and express the meaning of stone; Beautiful and generous seats; You can add 1- 10.
6.2 Quality identification of dried products of Shuhua jade:
6.2. 1 shape recognition (full score: 40)
High hollow can score 30-40 points.
Mountain type, long cylinder type and pictographic type can get 20-35 points.
Other flat, thin, rectangular, fat, short cylindrical and so on. You can score 10-20.
2.2 color recognition (out of 30)
The main products of red, blue, ink and gold are first-class products.
Score 20-30 points according to the purity, vividness and distribution area ratio of its color;
Main yellow, solid color, skin green and floating flowers are Grade II, and score 15-25;
Other dull colors are Grade III, with a score of 10- 15.
2.3 Identification of water types (full score: 25)
Transparent to translucent can get 15-25 points, and below translucent can get 5- 15 points.
2.4 Insects, vines, tree nodes, tree nodes, crystals, tree rings, etc. (Full score: 40 points)
Those who have the above qualities in Shuhua jade can get 5-40 points according to their qualities.
2.5 Deduct points for transverse cracks, impurities and purity defects (full mark minus 10).
Those who have the above performance in Shuhuayu can deduct 2- 10 points according to the degree of defects.
2.6 Proposition, Description, Meaning, Rhyme and Collocation (full score 10)
The proposition is accurate, novel and meaningful; Description should grasp the theme and express the meaning of stone; Beautiful and generous seats; You can add 1- 10.
abstract
If the total score of the above aspects is below 60 points, it is low grade, 60-80 is medium grade, 80- 100 is high grade,100-100 is the best, and 1 100 is treasure.