White jade has always been loved by our people because of its white, moist and beautiful appearance. During the prosperous jade-making period such as kelp, Song Dynasty, Ming and Qing Dynasties, great attention was paid to the selection of materials, and high-quality white jade was often used as a "heavy weapon" for carving. In the modern jade industry, white jade is precious, and many exquisite jade articles have been made.

Second, jet

Its black color includes gray black, dark black and so on. Black has many shapes, such as clouds, dots and bands. It is colored because the mineral composition contains graphite. The main variety is jet, and jet has the best paint quality.

Third, green jade

Its color ranges from light green to dark green, including light green white jade, gray green and dark green. Compared with Hetian jade, including sapphire, sapphire and jasper, the formation of its green tone is mostly due to impurities, so its jade quality is more impurities than white jade, and its color is not as good as Hetian jade.

Extended data:

Jade is an article made of natural jade. China had jade articles as early as 8,000 years ago, and they have continued to this day. The appearance of jade is the continuation and innovation of ancient stone tools.

The difference between artifacts and stone tools lies in the difference in texture and processing methods. Raw natural jade is jade material.

Classification of jade: internationally, jade refers to nephrite and jadeite (jadeite), and other jade carving stones are collectively referred to as jade. Gem is a collection of one or more minerals with special optical effects, and most of them are single crystals of certain minerals, such as diamond, ruby, sapphire, emerald, opal, tourmaline, purple tooth black and so on.

References:

Baidu encyclopedia-jadeware