Coal essence is coal jade and jet, which is an organic gem.

It has bright asphalt and metallic luster, black, compact and high toughness. There are two kinds, one is high-grade coal, the main component is carbon C, which is lighter than ordinary coal. The other is completely petrified, the main component is not carbon, the density is relatively large, heavier than coal, and the luster is more beautiful after carving, which exists between coal seams. Coal concentrate can be used to make handicrafts, carving handicrafts and decorations, so some people call it carved lacquer coal.

Coal concentrate consists of carbon and organic matter. According to the research and identification of geologists, it is considered that coal concentrate is a special kind of coal, which is a black crystal of hard trees rich in oil in ancient forests, such as oak, elm, birch, pine and cypress. , washed to low-lying areas by floods, and changed by crustal changes, high temperature and underground pressure.

The origin of coal concentrate must be lush plants growing in a certain geological age, gradually accumulating into thick layers in a suitable natural environment, buried in the bottom of the water or sediments, and then formed by natural coalification in a long geological age.

Application scope of coal concentrate

Coal carving has a history of more than 7000 years. Fushun fine coal carvings, such as ear pond ornaments and round beads, were unearthed at Xinle site in Shenyang 7000 years ago, which are the earliest objects in the history of coal carvings in China. From decorations to practical products, there are many kinds, such as birds and beasts, flowers and birds, fish and insects, figures, Four Treasures of the Study, smoking utensils and accessories, etc., which are all handicrafts with unique styles and are deeply appreciated and welcomed by people from all walks of life at home and abroad.

A work of art carved from fine coal often takes a sculptor months or even years from conception to the appearance of the finished product, because every knife mark is carved by hand, and the work is unique and absolutely different. Due to the different burial time and pit mouth, most of the high ancient coal concentrates will form a dark transition color, while the raw pit coal concentrates will show black gray, gray and olive color, and gradually show the unique texture of jade-like soft coal concentrates after playing. The longer you play, the more mellow it becomes.

Refer to the above content: Baidu Encyclopedia-Coal Essence