Joke Collection Website - Talk about mood - Discussion on several unreliable identification methods of rosewood
Discussion on several unreliable identification methods of rosewood
The first is to draw a blank line. The five beads placed here are lobular rosewood, blood sandalwood, family sandalwood, big leaf rosewood and acid branch.
These beads look very similar, especially blood sandalwood, which is difficult for many old players to distinguish with the naked eye. So how should we tell? We might as well try marking first.
Because lobular rosewood is rich in pterostigmine, both ancient India and China have the tradition of processing lobular rosewood powder into dyes. So many friends bought lobular rosewood to play with white gloves and found that the gloves were dyed. In fact, dyeing is the normal state.
So can you tell the truth of lobular rosewood by the fading of beads? Next, let's draw a line on the white paper with these five beads to see the difference. Draw a line with lobular rosewood first.
Let's see what blood sandalwood looks like.
The colors are very close. There is also an African blood sandalwood, another name of which is dyed rosewood. Next, let's see if other beads can draw colors.
This is Kotan.
Acid branch
Pterocarya macrophylla
Look at this paper. If you didn't see the painting process just now, can you tell which one is the line painted by lobular rosewood?
In fact, most redwoods can draw colors, and many colors are very similar to lobular rosewood. Therefore, it is impossible to distinguish the authenticity of lobular rosewood by drawing lines on white paper.
Myth 2: submergence method
Next, do the experiment of submerged method.
Put these five beads in water and see if they can sink. The density of each wood is different, and the density of different parts of the same wood is also different.
There are a lot of submerged wood. We can say that the lobular rosewood is submerged, but we can't say that the lobular rosewood is submerged. In fact, lobular rosewood also has a density difference that is not heavy, and blood sandalwood can also sink. Some people also say that the second heavy is lobular rosewood, but after reading the test, I know that it is not just lobular rosewood that sinks.
The underwater experiment failed.
Myth 3: Alcohol test
Next is the alcohol test, where five different beads are put into alcohol. We can see that the reaction of Pterocarya microphylla is very close to that of Erythrina.
Myth 4: Fluorescence reaction
The last test is the fluorescence reaction. We soaked the other five beads in water one day earlier, and now we can see their changes. The results of this fluorescence reaction test are obvious, and the fluorescence reaction of Pterocarya microphylla is the most obvious, but if there is no comparison, we still can't distinguish Pterocarya microphylla and Erythrina through this test. We have tested the high-density blood sandalwood before, and the fluorescence reaction of Pterocarya microphylla and blood sandalwood is very close, but this time the density of blood sandalwood is low, so the fluorescence reaction is weak.
It is said on the internet that rosewood has a fluorescence reaction, and the experimental results show that rosewood also has a fluorescence reaction. So this test is still unreliable.
All right, the experiment is finished. The above experiments show that none of these experimental methods can distinguish lobular rosewood, at least for beginners. Experiments must have limited conditions and reference values, such as whether to take wood that has just been opened or left for a while, and whether to take sawdust or beads for experiments. Without these conditions, talking about anything is hooliganism. Even given the conditions, these experiments are destructive experiments, and everyone is willing to do destructive experiments with their beloved lobular rosewood, so these experiments are of little significance.
The difference between rosewood and blood sandalwood
There are many kinds of wood close to the texture and color of lobular rosewood, and the closest one is blood sandalwood, which has only been known to the world in recent years. Very close, it is rumored that the Forestry University, which professionally certifies tree species, once certified blood sandalwood as lobular rosewood.
The price difference between blood sandalwood and lobular rosewood is several times huge. These two kinds of wood are not only similar in texture, but also very similar in internal structure. The batch of blood sandalwood with good appearance is similar to lobular rosewood, and it is basically indistinguishable from the picture.
The identification methods circulating on the Internet, such as submergence method, fluorescence reaction method and white paper marking method, can't distinguish bleeding sandalwood. Blood sandalwood has good density, can sink into water, has fluorescence reaction, and the white paper is marked with deep red.
The best way to distinguish blood sandalwood from red sandalwood is to smell it after burning. When burning, the oil overflows and the smell is light wood. You can hardly see the oil when you burn the blood sandalwood, and it tastes a bit strange. However, it is difficult for ordinary buyers to adopt this destructive experiment after receiving it.
It smells more accurate when smoking.
Fired lobular rosewood
Charred blood sandalwood
Secondly, put the red-hot wire on the tunnel for a second or two and smell the smoke.
The taste of lobular rosewood is more like the burnt smell of fragrant wood, and some people smell like temples; Blood sandalwood is sour and smelly, and its taste varies from person to person. Anyway, it doesn't smell good. It is strongly recommended that you buy two beads of lobular rosewood and blood sandalwood and burn them with fire to smell the smell. Smell the whole burnt smell, and you can distinguish them better.
Other characteristics (auxiliary means) of blood sandalwood different from lobular rosewood
1, the density is poor, the growth line is obvious and regular, which is close to the new material characteristics of lobular rosewood.
2, the color is yellow, it is firewood. This can't be reflected in the picture, and the physical contrast is more obvious.
3. The brown eyes of blood sandalwood are very regular and evenly distributed, and the brown eyes of rosewood are randomly distributed.
4. The sound of the bracelets colliding with the beads in their hands is dull, like the sound of wood hitting. The impact of rosewood beads is more porcelain, like the impact of porcelain.
5, other shopping should pay attention to do not buy lobular rosewood with poor oiliness. It is difficult to buy fakes according to the standard of good oiliness.
Comparison between rosewood and other counterfeiters
Others who used to pretend to be lobular rosewood include big leaf rosewood, ebony, rosewood, rosewood and so on. These can also be distinguished by appearance. The following is a comparison of counterfeiters and lobular rosewood.
After remembering these pictures, you can basically prevent cheating. Don't buy oil as long as you see something uncertain or look at it. The lobular rosewood is the most oily of all counterfeiters.
Let's not talk about every former counterfeiter here. First, some fake methods are out of date. Second, as a novice buyer, after all, I don't want to be a mahogany expert. It takes a long time to identify all the above wood with the naked eye, and it needs to contact a large number of samples. The more you know, the easier it is to get confused.
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