Ebony was mostly formed from 3000 to 8000 years, which is not enough to become a plant fossil; Similarly, it is not a mineral. Ebony, also known as dark wood, is formed by the carbonization of Nanmu, Toona sinensis, Liu Ma and other trees under the conditions of hypoxia and high pressure for thousands of years because of natural disasters. Due to different tree species, the market value is also different. Nanmu's golden nanmu is the most expensive, reaching 80 to100000 yuan per cubic meter. The longer the time, the better the preservation and the higher the price.
Black wood is cracked, generally only small handicrafts are made, and large furniture is rarely circulated; Its value is determined by the following factors: wood, tree species, thickness, carbonization degree, external pricing, whether it is sun-dried (stable after drying), color (common in black, rare in Jin Sinan), crack size, available value, etc. This should be considered from all aspects. (Generally, it costs 20,000 ~ 80,000 yuan/ton, but there is no specific standard for processing it into works of art ... Ebony bracelets are quoted on Taobao 180 yuan/piece). Another Compendium of Materia Medica records: heavy wood, smell: sweet, salty, flat and non-toxic. Indications: It can detoxify cholera and vomit. Grind sawdust into powder and take it with warm wine; It also has the effect of expelling wind and removing dampness.
One reason why ebony was particularly precious in ancient times was that there were few large-scale infrastructure projects in ancient times, abundant rivers (not as dry as now), and lack of large-scale excavation and hoisting equipment, dredging ships and so on. Therefore, there are fewer black trees that can be found and shipped back, which is the first precious; Secondly, the characteristics of dark wood formation doomed that it was difficult to find a large area of wood in the past, and the environment such as temperature and humidity changed greatly without the formation environment, and it was easy to crack due to improper storage, which affected the utilization rate, so it was also very precious; Finally, what is more precious in traditional culture is that it has been buried underground for thousands of years without decay, and it is spiritual, which can ward off evil spirits and accept blessings.
General furniture production also needs a good piece of aniseed, so furniture made of dark wood is particularly precious in terms of material consumption demand, maintenance and traditional culture. Because ebony is a non-renewable resource, the development amount is less and less, and some natural ebony artworks have certain collection value.