How to identify tiemu chopping block?

As luck would have it, I just bought a round chopping board called Vietnamese inkstone, with a size of 36*4. In the process of buying this chopping board, I was passively popularized with some knowledge about ironwood.

Jin Tiemu. A lot of things bought online are such Jin Tiemu's chopping boards. I bought a yellow-brown round board first, and the seller of course said it was authentic Vietnamese iron wood, including the propaganda map of the webpage, all of which were exquisite iron wood chopping boards with similar ripple levels. I couldn't resist buying a piece. Upon receipt, the goods were completely wrong. This is a wooden board with very thick brown pores with a diameter of one millimeter. The lines are beautiful, but my intuition tells me that it should not be ironwood. How can Tiemu have such thick pores? Isn't it clean to hide the vegetable scraps and meat scraps? After consulting, I learned that this is a wooden board in ockham, Africa, also known as Jin Tiemu. You don't need to open the package, because the pores are so big that you can see them ten miles away.

This is the board I returned.

After decisively returning the goods, I bought another expensive one. It is said that I sold authentic inkstones after I left the army. When I got it, I found that the board was black, red and black. After investigation, this time it is Tiemu, but it is still not the traditional Vietnamese Tiemu (also known as inkstone wood). This time it was filled with African red iron wood. I won't return it this time, so I'll make do with it.

After understanding, I basically can't buy Vietnamese inkstone wood now, because logging is strictly restricted. You can buy Laotian ironwood at most. Although it is not as good as the quality and color of Vietnam, it is not bad. More like me, I either buy Okan wood or African red iron wood. Due to raw materials, Vietnamese boards are no longer available on the Internet.

From the price point of view, the first one I bought was less than 100 yuan, and the second one was 200 yuan, and I bought African rosewood. As the subject said, you can't buy more than 70 pieces of iron wood, and nine times out of ten, it is also a piece of yellow-brown Okan wood. You can smell the sour wood without opening it, but I have never seen authentic Vietnamese inkstone wood, and it is said that it has no smell.