战汉时期（公元前475至汉武帝时期公元前87年，只有388年.）。战汉时期玉器以皇玉为主,选材考究玉质要求严格,以和田玉为主.因此,了解各种玉材的特征很重要，尤其是常见的和田玉、岫岩玉、独山玉、蓝田玉以及九十年代后出现的青海昆仑玉、俄罗斯玉、阿富汗玉等之间的差异。During the Han Dynasty(475-Han Dynasty BC, 87 BC, only 388 years. ). During the Han Dynasty, jade was mainly imperial jade, and the selection of materials was strictly required. Hetian jade was the main one. Therefore, it is important to understand the characteristics of various jade materials. In particular, there are common differences between Hetian Jade, Xiuyan Jade, Dushan Jade, Lantianyu, and Qinghai Kunlun Jade, Russian Jade, and Afghan Jade that appeared after the 1990s.
看玉质，要从玉的颜色、温润度、密度、透明度、及糖色、绺裂、斑点、絮状物等进行综合评价。好玉似有油脂含于内，一种内敛的温润。致密度好、比重大、半透明。太透则欠稳重（太灵）、不透则类石质。排序为：羊脂白玉、黄玉、青白玉、墨玉、碧玉
Looking at jade quality, it is necessary to conduct a comprehensive evaluation from the color, temperature, density, transparency, and sugar color, cracking, spots, and flocculants of jade. Good jade seems to contain grease, a kind of introverted warmth. The density is good, the proportion is large, translucent. Too deep is not stable(Tai Ling), and impermeable is stony. Sort as: Sheep white jade, Topaz, turquoise jade, ink jade, Jasper.
深埋几千年，不同的地温地压下，会形成五彩斑斓的沁色。有渗出说和沁入说，是墓里随葬物质与玉质相互间的一种物质变换。沁成黄褐色称土沁，是土中氧化铁的沁人；黑色沁俗称水银沁，是棺木、衣被类碳的沁入；常见的还有绿色沁，是接触铜器，氧化铜的沁入；鸡骨白是玉质的钙化变性。真沁都会有深浅、厚薄的过渡。沁色入骨，深沁到玉质内部，分层次贯穿玉器两面。水银沁如水滴状悬于玉内。一般是土沁、水银沁、鸡骨白杂陈玉内，也有单色沁。玉器上出现黑、绿、白、红多色沁，称五色沁。古有“玉有五色沁，胜抵十万金”的说法，极珍贵。Deep buried for thousands of years, under the pressure of different temperatures, will form colorful color. It is a material transformation between buried material and jade in the tomb. It is known as the earth, which is the person of iron oxide in the soil; Black wolfberry is commonly known as mercury, which is the entry of carbon into coffins and clothing; Also common is greenery, which is the contact of copper, copper oxide; Chicken bone white is the calcification of jade. Genji will have a deep and thin transition. The color is bone, deep into the jade interior, and runs through both sides of the jade. Mercury is suspended in jade like water droplets. It is generally Tuyi, Shuiyin, and Baizachenyunei, as well as monochrome. There are black, green, white, and red colors on the jade, which are called five colors. In ancient times, there was a saying that "jade has five colors and it is better than 100,000 gold." It is extremely precious.
本公司有幸征集到（战汉青白玉印章） 重：2014g； 宽：11.3cm； 高：16.5cm.
注：此藏品将会在5月16~20日的文博会展出。 地点：深圳会展中心9号馆。
The company was fortunate enough to collect(Han Qing Bai Yu seal) heavy: 2014g; Width: 11.3 cm; High: 16.5 cm.
Note: This collection will be exhibited at the cultural fair on May 16-20. Venue: Shenzhen Convention and Exhibition Center No. 9 Hall.
玉文化是中国传统文化的主要组成部分，也是天下民族文化之林的一支奇葩。在中国这块广袤的土地上，古代先民审时度势，辛勤耕作，沐日月绚烂，与天地同庆，缔造了绚烂光耀的中华文明。他们爱玉、尊玉、崇玉、比德于玉，生长形成了内在富厚、威风凛凛威风凛凛奇异的玉文化。近万年来，玉文化一直能够为差异地域、差异时代、差异民族的人们所接受，绵延一直地生长起来，并随着时代的演进，一直拓展其内在，富厚其体现形式，推陈出新、热潮迭起，显示出奇异的魅力和兴旺的生命力，这在天下物质文化史上也是十分有数的。印章—自古以来就是威信与至高权力的象征。其转达出来的艺术价值历史价值文化价值不言而喻。
Jade culture is the main component of Chinese traditional culture, and it is also a wonderful flower in the forest of national culture. In this vast land of China, the ancient ancestors judged the situation, worked hard, bathed the sun and the moon, celebrated with heaven and earth, and created a splendid Chinese civilization. They love jade, respect jade, Chongyu, and Yuyu, and they have grown into a strange jade culture that is rich and majestic. For nearly a million years, jade culture has been accepted by people of different regions, different times, and different ethnic groups. It has been growing up all the time, and with the evolution of the times, it has always expanded its inner form, enriched its embodiment, and promoted new forms and upsurge. It shows strange charm and thriving vitality, which is also very well known in the history of world material culture. Seal-Since ancient times, it has been a symbol of prestige and Supreme power. The historical value of art value conveyed by it is self-evident.
