1) Look at the front surface of the marble for fine veins and tiny cracks. Stone is most likely to crack in these areas.
2) Natural stone will contain three kinds of radioactive elements released by helium, although it is less than granite. According to the "specific activity", the specific activity is red, flesh red, from high to low. Grayish white, white, black marble.
3) Marble is divided into three types of stone, A, B and C. It is recommended to use Class A stone in the room. Do not pay attention to ten million.
4) If you feel that the above method is too professional, you can't judge it at all. Here is the most simple way: drop a drop of blue ink on the back of the stone. If the ink quickly disperses and leaches around (about 10 seconds), it means stone. The quality is not good, (90% in the small store). On the contrary, if the ink drops in place, it means that the stone is dense and good.
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