? cause
? 1 color change type of intrusive rocks
During the growth of amethyst, due to the invasion of high-temperature magma, the temperature of crystal production environment rises, and the iron in amethyst will change color at high temperature, and the purple of crystal will gradually fade, and yellow will begin to appear with the continuous increase of temperature. When magma stops invading or under the action of natural ionizing radiation, the low water system flows, the temperature will gradually decrease, the crystal will stop changing color, and purple and yellow will be mixed together, so amethyst will be born. Even if the formation conditions are so bad, this intrusive rock-colored amethyst still accounts for more than 95% of amethyst.
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? 2 Primary amethyst is also called Trapiche amethyst, and the formation of this amethyst is relatively rare, accounting for only about 3% of all amethysts. Six crystal branches radiate outward from the crystal nucleus, forming snowflake-like hexagonal and radial spiral arm belts. Because this structure is very similar to the grinding wheel (Trapiche de asugar) used to squeeze sugarcane juice in South America at that time, Trapiche is used to name this strange phenomenon of tripartite crystal system. Colombians are convinced that de labiche is a special gift from God, and every line represents a blessing: health, wealth, love, luck, wisdom and happiness. The reason for the formation of labiche amethyst is that in the initial stage of crystal cluster formation, the chemical composition, temperature and pressure in the vein are fortunately combined together, and then geomagnetic action participates in calibrating the arrangement process of amethyst molecules adsorbed by the crystal nucleus. Geomagnetic action leads to hexagonal classification of cubic crystal system. Ideally, the types of ions preferentially adsorbed on each side of a hexagon are different. This makes the end face that preferentially adsorbs trivalent iron ions remain pure yellow, while the end face that preferentially adsorbs hollow color holes remains pure purple. Once this pattern is formed, in the long process after hundreds of millions of years, the crystal clusters are getting bigger and bigger, and the amethyst with band-shaped color arms radiating from the center to six sides is gradually formed. Therefore, we call it primary amethyst. The main producing area of natural amethyst is mainly produced in Bolivia in South America, which is called "Bolivia National Stone". Brazil is rich in natural amethyst, with a small amount of amethyst mixed. However, due to the small quantity and poor quality, it is impossible to carry out commercial development. South American countries that export natural amethyst are basically importing from Bolivia and then exporting. Amethyst is also found in China, Yunnan and India, but its quality is poor, so it is impossible to make high-grade jewelry.
Function and efficacy
1 Physiological Function of Amethyst The energy of Amethyst is fast and effective. Amethyst can relieve mental stress and tension, stabilize mood and make people concentrate on meditation. It is helpful to develop eyebrow chakra, improve medical effect and insight, and combine yin and yang energy. Amethyst has a powerful degaussing function, which can dispel the negative energy in the gas field, remove toxins from the body and eliminate physical, emotional and spiritual obstacles. Amethyst is an excellent blood scavenger, an energy supply station and an effective cardiotonic. It can promote the tissue regeneration of the body, enhance the function of the immune system, benefit the autonomic nervous system of the human body, help promote physiological maturity and provide oxygen for the body. It can treat chronic fatigue syndrome, regulate the mood of excitement and depression, and also has curative effects on stomach discomfort, gastric ulcer, fatigue, drowsiness, headache and stress-related diseases.
The spiritual function of amethyst has both the functions of amethyst and amethyst, which can not only attract partial fortune, but also maintain wealth and open wisdom, enhance luck, improve interpersonal relationship and develop wisdom, and increase inclusiveness. Amethyst has powerful energy, which can stimulate people's creativity and control their own destiny. With its help, it is easier for people to improve their attention, consider problems more comprehensively, explore all possibilities of things, and solve problems more creatively. In a word, amethyst can purify people's spiritual level, coordinate people's perception and behavior, and make thinking transcend the secular and enter a higher consciousness. Between amethyst and topaz, it can soothe the nerves, enhance spirituality and balance the two-line development of things. It is said that because two colors exist on the same spar at the same time, it also means that the wearer's endurance can be increased, and when he is in a complicated and unfriendly interpersonal relationship and environment, he can peacefully coordinate and solve the disputes around him.
3 The emotional function of amethyst Natural amethyst has the characteristics of amethyst and topaz, which perfectly combines wisdom and wealth. It is a functional gem, which can balance the advantages and disadvantages in love, career and family. Emotionally, amethyst can promote the change of mood, understand the potential causes of emotional distress, and thus eliminate some psychological obstacles caused by negative emotions. It can keep people optimistic and healthy, and get rid of the pressure and troubles brought by external things. Amethyst can give lovers and couples deep love, chastity, honesty and courage. Amethyst combines the strength of topaz, brings firmness and wealth into love, makes emotional life single-minded, avoids the destruction of others, and advocates harmonious, harmonious and rich love.
? Value influencing factors
1. The shade of amethyst is also called tint. The quality of dark amethyst is higher than that of light amethyst, so the darker the color, the higher the price, and vice versa.
2. The color interface of amethyst is also called color separation. The more obvious the color interface of amethyst, the higher the quality, the more beautiful the crystal and the higher the price value.
3. The purity of amethyst. Most high-grade amethyst jewelry on the market requires visual inspection without defects. Visually defective minerals are generally processed into ornaments and other handicrafts. The better the purity of amethyst, the more flawless it is, and the higher the price. On the contrary, the price is lower.
4. The cutting of amethyst. Excellent cutting can improve the quality of amethyst. If the cutting is flawed, it will definitely affect the quality of amethyst. The better the cutting, the brighter the amethyst, the stronger the light refraction, the more beautiful it is, and the higher the price will naturally be.
5. The weight of amethyst. Amethyst is a crystal gem, so it is generally not very heavy. Weight less than 5 carats will affect the grade of amethyst. The larger the flawless amethyst, the more precious it is and the higher the price.