Hetian jade is a very common type of gemstone in jewelry and jade, and it is very popular in the Chinese jewelry market. The quality and value of Hetian jade are affected by color, พื้นผิว, gloss, ความชัดเจน, transparency, blockiness, and carving.
สี
The colors of Hetian stone jade are white, cyan, gray, สีเขียว, สีเหลือง, สีน้ำตาล, ink, ฯลฯ. The color requirements are soft, pure and uniform. The ancients’ requirements for jade color are “white as fat cut”, “yellow as steamed chestnut”, “green as moss”, “green as feathers”, และ “black as pure paint”. ในหมู่พวกเขา, the white Hetian jade, or mutton fat jade, is the most precious and valuable. It is an extremely rare and precious variety of Hetian jade.
พื้นผิว
Because the mineral particles that make up Hetian jade are relatively fine, most of them are in O. Between 01 mm and 0.10 มม., it is cryptocrystalline, and no particles can be seen with the naked eye. Its crystal shape can only be seen under a microscope. It is generally fibrous and felt-like intertwined, so its structure is very delicate and polished. . The texture of Hetian jade is dense, ละเอียดอ่อน, tough, เรียบ, oily and flawless, and rarely cracks.
luster
Hetian jade has waxy luster, grease luster and glass luster, among which grease luster is the best, which can make the jade appear warm and moist. The second is glass luster, and waxy luster is slightly less.
Cleaness
The clarity of Hetian jade depends on the amount of impurities and defects. The fewer flaws and impurities of Hetian jade, ดีกว่า. The flaws mainly include stone flowers, jade tendons, stone nails, black spots and cracks.
transparency
Hetian jade is generally not very transparent, most of which are translucent to opaque, and can be divided into three levels: translucent, slightly transparent and opaque. The transparency of Hetian jade is preferably slightly transparent. Opaque or too good transparency will affect the quality and value of Hetian jade.
ขนาด
For Hetian jade of the same quality, obviously, the larger the size, ค่าที่สูงขึ้น. The larger the size, ดีกว่า, and it requires perfection and no cracks.
Carver
For the jade processed by Hetian jade, its value is not only affected by its color, พื้นผิว, luster, ความชัดเจน, transparency, blockiness, เป็นต้น, but its design level and carving process are also important aspects of its value.