In order to maintain the aesthetic characteristics of the stone, and not to deteriorate, it is necessary to take appropriate storage methods.
Anti-dry crack
First, it is necessary to prevent dry cracking. In the natural environment, the rain stone retains a certain humidity. Some of the stone contains water molecules. When it is dry for a long time, it will lose free water molecules, and the surface may crack. Especially the polished stone and opal. When it is dry for a long time, it will crack. . It is best to maintain relative humidity when storing. It is also necessary to prevent mechanical collisions, which will crack and break under the action of external force, and be careful when handling.
Acid and alkali
Second, it is necessary to prevent acid and alkali. The main chemical component of Yuhua Stone is silica, which is basically neutral. Its geological environment in nature is basically neutral. Therefore, the storage environment should also remain neutral. Acid or alkali, the ions in the acid and alkali will chemically react with the pigment ions in the stone, causing the stone to deteriorate, or corrode, or discolor. Under normal circumstances, the water is neutral, and the acid-alkaline water has an effect on the stone. When using the exhibition, it is best to use distilled water or cooling water after boiling. If possible, the pH of the water can be tested with a pH test paper before use. The pH is greater than 7 and the pH is less than 7. Slightly add some white vinegar to the base; add a little bit of soda to the acid, and adjust to a pH of 7.
Heat prevention and exposure
Third, it is to prevent heat and prevent exposure. Heating or exposure to strong light, as the temperature increases, will also change the properties of the pigment ions, causing the stone to deteriorate. Leave the heat source when you are keeping it, and avoid exposure to the sun. Other uses Yuhuatai is known as "Jubaoshan" and "Agateau" because of its prolific pebbles. The rain stone does not necessarily have the role of viewing. Some of the stone that has no ornamental value has his value in other aspects.
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