Jade is a stone after all, and its surface will certainly not be as seamless as a mirror. But when polishing, the surface will be covered with abrasive, so the metal inside is not easy to contact with air and water vapor. After wearing for a while, oil, water, etc. Will immerse, causing the metal inside to oxidize, and those changes will happen. The trace of metal oxide is only the trace of jade gap, which looks like blood vessels. There are red ones and black ones, showing different colors according to the composition.
Jade will change when worn for a long time, becoming particularly round and smooth, some will change color, or something similar to bloodshot will be produced. This is actually a physical change, which has nothing to do with immaterial phenomena. Discoloration usually goes from shallow to deep, which is caused by people's long-term contact. Things that are rubbed for a long time will form an oil film on the surface, and places where stone tablets and pillars in tourist attractions often contact will turn bright black. That's the reason.
There are bloodshot jade, but the substance is constantly changing, and it is normal to add complex external influences (human contact, sweat, different physique).
Extended data:
Yuji health
Jade in China has a long history of health preservation. According to Shennong's Compendium of Materia Medica and Compendium of Materia Medica, jade has many functions, such as "clearing away heat, relieving annoyance, helping voice and moistening throat, nourishing hair, nourishing five internal organs, calming nerves, dredging blood vessels and clearing eyes and ears". Jade is not only used for wearing, playing and massaging, but also for eating jade chips.
Some scholars believe that there are many ancient jade articles, which are rare in the world. This may be related to the popularization of Taoism in Han Dynasty and people eating jade chips. It is estimated that many ancient jade were mashed and eaten by the ancients.
Eating jade has the effect of treating diseases and health care, and minerals do have the effect of treating diseases. Shanghai University of Traditional Chinese Medicine Press has published a book "Treating All Diseases with Hundred Stones", which is all about the efficacy and usage of mineral drugs, and the country also has the brewing standards for mineral drugs. This mineral, which takes hundreds of millions of years to form, is very rare, so I won't say much about eating it. Let's talk about the external use of jade first.
The ancients believed that jade was the essence of yin and yang, a harmonious materialized expression, and was considered to have a magical effect on human health. Modern research shows that jade has magical biological, chemical and physical properties. After being polished, jade will accumulate efficacy and form an electromagnetic field, which will resonate with the human body when worn on the body, thus promoting the coordinated operation of human functions.
Biological, chemical and physical studies show that jade contains more than ten kinds of trace elements such as gold, silver, silicon, zinc, iron, selenium, magnesium and manganese. And the TV advertisement of the role of zinc, selenium, manganese and other trace elements is about to burst, so naturally I don't have to beat around the bush. Wear, play with and use jade articles frequently. These trace elements can penetrate into human body through skin and acupoints, and the electromagnetic effect produced by friction also resonates with human body, thus achieving the purpose of regulating human body function and promoting health.
In a word, wearing jade, playing with jade and using jade are all good for health care, especially ancient jade. But be careful not to use chemical imitation of ancient jade, which is not only unhealthy, but also harmful to the body.
What is jade? The beauty of stone lies in jade. What is beauty? It is beautiful to have brains. The so-called "1000 kinds of agate, 10 thousand kinds of jade" means that there is no only jade in the world that can be called jade. Jade varies from place of origin to person, and people have different preferences. Jade is both material and spiritual. Jade is originally a stone and only exists in their own hearts.
Jade has been a symbol of nobility and purity since ancient times. It is a fate and a blessing to find a beautiful jade that one party has long admired. As the saying goes, gold is valuable, jade is priceless, and jade is a gem, which is naturally valuable. However, jade is by no means something that can only be viewed from a distance but cannot be appreciated. On the contrary, the closer you get to it, the more mellow and shiny it will be, and the spirituality of jade lies here.
The so-called jade cultivation means that collectors should not only wipe jade daily, but also hide jade close to their bodies and play with it constantly. Only in this way can jade turn into a butterfly and bloom its own spirituality and color. Generally speaking, the key to "raising jade" is to "dish jade" Proper disk method will get twice the result with half the effort, otherwise it will fall short.
References:
Baidu encyclopedia-jade