There are crystals in the world, the name of which is sodium acetate trihydrate crystal. Its shape is like a star, the quality is like coagulation, the color is pure and transparent, and the light enters the illusion and overflows, and it is very magnificent.
At the beginning, this crystal was often hidden on the side of the kettle stove, and the craftsman made it according to the recipe with acetic acid and alkali sodium. Prepare the kettle first, fill it with water, warm it with a slight fire, slowly pour sodium acetate into it, stir it, and wait for it to be completely dissolved. The solution is clear and clear, like the water of the autumn pool. Then move the kettle to a cool place, let it stand without disturbance, and after a while, the crystal nucleus gradually emerges, like a star falling into the abyss. Then the crystal spread, and in an instant, the kettle was full of crystals, just like Qionglin Yushu, born in the world.
This crystal has a strange nature, melting and cold, although it forms a liquid, it coagulates when it touches things. If it is attracted by foreign objects, it crystallizes instantly, like ice covering a cold river, and it is warm, which can warm people in cold times. In the cold night, I hold the palm of my hand, and the warmth enters my body, just like the warm sun approaching my body.
In the past, there were cold people who studied hard in the shabby room, and the winter night was strange and cold, and their hands were stiff and could not hold a pen. Occasionally, this crystal was placed on the side of the case after melting, and the pen was cold when it touched the crystal to take the temperature. The crystal coagulated and the temperature did not disperse.
I also heard that the craftsmen in the workshop use crystals to make warm things, carry them in winter, warm their hands and warm their hearts, and are liked by everyone. The beauty of its crystals is not unique, but also can help the world and facilitate the people. It is actually a spiritual thing.