The method of polishing and maintaining mackerel stone is as follows:

1, after getting the stone, find a bucket or tank larger than the stone, put the stone in it, and then put in the water, the water surface should be no more than the stone, and soak the stone for a few days, so that the dust and dirt on the stone will be loosened up and prepared for the next step of cleaning.

2, the stone soaked for a few days, with a variety of small brushes to scrub the surface of the stone and crevices, brush material can be selected according to the softness of the stone, hard stone can choose steel brush, soft stone can choose nylon brushes, dipped in water, scrub the stone and clean it, and then clean it again.

3, the stone after scrubbing, it began to sand, sanding, according to the thickness of the stone, to choose a different thickness of the grinding head, this process must be careful plus patience, can not be impatient, otherwise it will ruin the beloved stone. Grinding, in accordance with the order of the first coarse and then fine, step by step grinding, until grinding to their satisfaction until the smoothness.

4, avoid bumping, maintenance of mackerel stone need to avoid bumping, mackerel stone is a relatively small hardness, brittle natural minerals, usually to avoid mackerel stone and other hardness of the items produced by bumping, otherwise it is very easy to lead to mackerel stone appearance of damage or cracked.

5, regular cleaning, in addition to the maintenance of mackerel stone also need to be regularly cleaned, mackerel stone after a long period of time to place or wear, the surface will be attached to a large amount of dust, dirt and other impurities, regular cleaning helps to maintain the mackerel stone clean, bright appearance.

Mackerel stone

Mackerel stone, also known as black _ stone. It is a horny growth in the throat below the occipital bone of the mackerel that is used to assist in crushing hard foods such as snails. Its color is yellow, its shape like a heart, hard as stone, crystal body, such as jade. In the Hakka region as a precious item. More varieties of bluegill, with this stone of bluegill (black carp) species also known as snail green, is a freshwater fish, weight up to tens of kilograms.