About the preservation method of Yuhua stone

To keep the unique beauty of Yuhua stone, not to make it deteriorate, the storage method is still very important, the following for you to introduce two.

One is to prevent acid and alkali.The main chemical composition of Yuhua stone is silica, basically belongs to the neutral, it is in the natural geological environment, also basically belongs to the neutral.Therefore, the storage environment should also remain neutral.Meta acid or base, the ions in the acid and base will react with the pigment ions in the stone, making the stone metamorphism, or corrosion, or discoloration.Under normal circumstances, the water is neutral, acid and alkali water, have an impact on Yuhua stone.When exhibiting, it is best to use distilled water, or boiled cooling water.If possible, before using water, use a pH test paper to test the pH of the water, pH value of more than 7 base, pH value of less than 7 acid.Alkali slightly more edible white vinegar;Slant acid slightly add food alkali, adjust to pH value is equal to 7 can be.

Second, to prevent heat exposure.Heating or exposure under strong light, with the increase of temperature, will also change the nature of pigment ions, make the metamorphism of Yuhua stone.Keep away from the heat source and avoid exposure to the sun.

The third is to prevent dry crack.Yuhua stone in the natural environment, maintain a certain humidity, some of the Yuhua stone contains water molecules, in the case of long-term drying, will lose free water molecules, the surface may crack, especially polishing stone and opal, dry for a long time, will crack.When storage, it is best to maintain the relative humidity.Also to prevent mechanical collision, under the action of external force will crack damage, take and put to be careful.