Identification method of lobular rosewood;
1, visual observation.
The lobular rosewood was dark yellow in the early stage. After a while, the wood will gradually turn big red, and the time will be longer and longer. The color of lobular rosewood gradually turned purple, gradually deepened, and finally became purple-black now. The annual ring pattern of lobular rosewood is generally twisted and filiform, and the crab claw pattern and cow hair pattern are also derived from it. The thread of Dalbergia microphylla also has straight filaments, but most of them are twisted filaments. The lobular rosewood has few bristles, thin and dense, but the wood is very strong and thick, which is why lobular rosewood can be used as furniture. It is precisely because of its hardness and density that lobular rosewood has become a leader in mahogany furniture. The texture of lobular rosewood looks delicate, thick and slender to the naked eye, and the cow hair lines are obvious. In particular, its color is very deep, and lobular rosewood has another feature, because the material of lobular rosewood is very dense and hard. Exposed to the air for a long time, the heartwood is bright red or orange-red, and the stripes turn purple-red-brown, which has a strong sense of grease. After a long time, it will produce horny luster and reflect light from different angles.
2. Marking method.
Draw lobular rosewood on paper or white wall, it will be as red as crayons. This identification method of lobular rosewood is only a preliminary identification method, and it cannot accurately identify the authenticity of lobular rosewood. Because not only lobular rosewood, big leaf rosewood, some rosewood, and even red rosewood can also draw red lines. But at least make the most basic judgment: if you can't draw a red line on the paper, it is definitely not lobular rosewood.
3. Submerged method.
Throw the lobular rosewood into the water and it will sink when it meets the water. But there are several kinds of ebony that can sink, such as ebony, big leaf rosewood and green sandalwood, not just lobular rosewood. But this identification method of lobular rosewood can be proved in turn. If it can't sink, it's definitely not lobular rosewood.
4. Alcohol experiment method.
Take rosewood sawdust and put it in alcohol. What can turn into smoke is rosewood (cotton wool). This identification method of lobular rosewood should be the most effective method to identify lobular rosewood, because only lobular rosewood has this characteristic. But this identification method of lobular rosewood is not feasible, because the seller is not willing to scrape sawdust from the object for you to test, and you will not bring alcohol to buy lobular rosewood.
5. "hands-on" method.
The weight of lobular rosewood is about 1: 1.03. If it is less than 1: 1.03, you should pay attention.
6. Test method of cotton.
Gently wipe the surface of lobular rosewood with cotton. If there is purplish red on cotton, it means it is really lobular rosewood.
7. Smell.
In fact, lobular rosewood has no fragrance, so if we buy wood with strong fragrance, no matter how similar it is to lobular rosewood in other aspects, don't hesitate, it is definitely not lobular rosewood.
8, soaking method.
Soak Pterocarya stenoptera in a glass filled with clear water, and the ratio of wood to water is between 1:3 and 1: 10. After standing for 5- 12 hours, it can be seen that the top water and glass fittings have obvious blue oily fluorescence, and the longer the soaking time, the more obvious the fluorescence.
9. Price comparison method.
At present, the wood price of Indian lobular rosewood in May of 20 13 is about 88. 1 10,000 tons (octagonal). Think about it, raw materials are at this price. You can buy polished objects and furniture at a price lower than that of raw materials. Is it possible?
Big leaf rosewood is another name for this kind of wood by some enterprises and individuals in the mahogany furniture market, which may be used to improve the value of this kind of wood. Appraised by the Chinese Academy of Forestry, the botanical classification name of this wood is Dalbergia Lushi (also belonging to redwood). In the national standard of "redwood", it belongs to black rosewood (non-rosewood) and is produced in Madagascar, Africa. The new section of heartwood is orange-red, but it turns to deep purple after a long time. It has a sour aroma and looks like rosewood, but its texture is rough. The banded stripes on the section are obvious and wide, and the cow hair lines formed by the tube holes are long, straight, thick and many, which makes the wood rougher than rosewood. At present, the price on the market is only one of 14 lobular rosewood. Due to the high price of lobular rosewood, this lobular rosewood is basically used in the market to deceive consumers.
Summarize the differences between Indian lobular rosewood and Lushi ebony (also known as big leaf rosewood) from the following aspects:
1, aroma
Indian lobular rosewood: no or clear fragrance is weak.
Dalbergia Lushi: sour taste
2. Weight
Indian lobular rosewood: submerged in water
Dalbergia Lushi: Submerged, specific gravity
3. The color of the board material
Indian lobular rosewood: purple or deep purple
Lushi ebony: the surface is orange-red when it is just opened, and it is dark purple or dark brown after a long time.
4. Fluorescence reflection
Indian lobular rosewood: Yes.
Dalbergia Lushi: None
5. Catheter
Indian lobular rosewood: rich in red gum and pterostigmine.
Dalbergia Lushi: the color of the vein pipeline is dark, which is quite different from its true color.
6. oily texture
Indian lobular rosewood: strong
Dalbergia Lushi: strong, poor light ratio.
7. Texture
Indian lobular rosewood: the texture is straight and the pattern is few.
Dalbergia Lushi: The pattern is obvious and partially curly.
Finally, I will tell you the unique efficacy of lobular rosewood.
There are many functions of lobular rosewood: lobular rosewood takes hundreds of years to become a useful material, which combines the essence of the sun and the moon and is a good product to balance yin and yang. Xiao Ye's quiver has the functions of avoiding evil spirits, ensuring peace, eliminating disasters, gathering wealth, changing geomantic omen, worshiping Buddha, treating diseases and relieving Eritrea. According to Compendium of Materia Medica, Pterocarya stenoptera has the effects of calming the mind, relaxing muscles and tendons, promoting blood circulation, diminishing inflammation and relieving pain. Wearing rosewood ornaments can have incredible magical power and induction, such as enhancing immunity, preventing aging, stabilizing heart rate and improving insomnia.