3 thoughts on “I like green gems, such as emerald gems. In addition to the beautiful colors, the emerald gems are other meanings? How to identify his good or bad?”
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As the birth of the birth of May, emerald is a symbol of luck and happiness. The ancients even thought that people wearing emeralds would have supernatural prophets, which can make talents intelligent and prevent the invasion of the disease. Emerald symbolizes the vitality of luck, happiness and all things, and wearing it will bring people a lifelong peace. It is also the commemorative stone of the 55th anniversary of marriage. The color of Emerald is almost unique among all green gems. In the history of jewelry culture in the West, emeralds are regarded as a symbol of love and life, representing a vibrant spring. [1] The legendary emerald is also a favorite jewelry of Venus Venus, so emerald has the connotation of success and guarantee of love. The mysterious glory makes it one of the most precious gems. Since the discovery of human beings, emerald has been regarded as a magical power of exorcising ghosts and avoiding evils. People use emeralds as amulets, evil objects or religious ornaments. I believe that wearing it can resist the invasion of poisonous snakes and beasts.
The appraisal of emeralds is a difficult job. The reason why this is because under laboratory conditions, it can simulate the growth conditions of natural emeralds, and synthesize the emerald emerald. In addition, in Australia, a inferior emerald has been artificially improved by the laboratory to make it a higher -grade emerald. This is the refined emerald. Is this emerald belonging to natural or synthesis, and it is still the word. The component of emeralds is Be3al2 [SI6O18]. It is a silicate mineral of aluminum aluminum. Its green is usually caused by chromium or 钒 elements. The CR2O3 content changes between 0.15%-0.6%. -8, crispy. Except for hydrofluoric acid, there is no response to other acids. Emeralds in different places in the world often have some small changes in physical and optical properties. Similar to grandmother's other natural gems include emeralds, emeranetes, tourmaline, fluorite, and green vermiculite. In many cases, it is necessary to strictly distinguish these gemstones need to use small identification instruments such as folding instruments and polarizers, and distinguish them according to their different characteristics (Table 2-8); from the perspective of experience, emerald often has the fiber spots structure structure. ; The proportion of the kioscope is large, and there are "ponytails" parcels; fluorite has low hardness and large gravity; vermiculite is strong and obvious. These features can be used as a reference for the naked eye observation and identification.
The synthetic gemstones similar to emeralds include synthetic emeralds, YAG (钇 aluminum fields), green glass and other types. Among them, the distinction between natural emeralds and YGA and glass can be performed according to the following two points:
1. Most natural emeralds will have flaws and cracks. This is similar to ruby. It can also be seen that some black mineral packages and other impurities are also seen; most of the synthetic products are clean, or there are small bubbles.
1) The identification of the mezzanine can refer to the part of the ruby mezzanine. (2) Line foil emerald mainly appears in some bottoms of the bottom of the bottom of the bottom of the gemstone, because a layer of green foil is added to the bottom of the gem. Essence Therefore, all jewelry inlaid at the bottom must be careful.
(3) Oil into the most commonly used method for emerald treatment. Because of the emerald crispy, there are often crack flaws. Injecting some oil into the cracks, the crack is not so obvious. In the treatment of emeralds, it is often used in the citron tree oil (the discount rate is 1.575) and the Canadian tree gum (the discount rate is 1.52). To detect whether the gem is treated with oil, you can use a 10x large mirror to carefully observe some surface cracks. The observation angle is different. Barbecue "(be careful not to be too hot)! The gem that enters the oily emerald
will have the phenomenon of "out of dirt", that is, the oil will penetrate outward, and wipe the oil traces with soft paper (observe under 10 times the large mirror). When testing whether it is in the oil, it is more important to pay attention to whether it is colored at the same time. If the color is found to be distributed along some cracks, it means that it is abnormal.
4. Appraisal key natural emeralds have flaws or bodies. It is best to have an appraisal of "Natural" to buy valuable products.
It you can go to China color gem network to see! There are many introductions above.
Emerald (emerald)
The English name of emeralds is EMERALD, which originated in ancient Persian, and later evolved into Latin SmarAgs. About around the 16th century AD, it became the English name of today. Emerald is also called "Luzon green" and "emerald". The ancient Greeks called emeralds as "glowing".
The molecular formula is be3al2 [si6o18]
discount rate: 1.564-1.602, double refractive index 0.005-0.009, multi-color is not obvious
n crystal crystal Department: belongs to the hexagonal crystal system
hardness: 7.5
density: 2.63-2.90 grams/cubic centimeter
The silicate of silicate belongs to the most "noble" member of the green pillars. The crystal monomer is six -square column and six -way double cone, which are mostly columns. The collection body is granular, block, etc. Non -homogeneous body, emerald green, glass luster, transparent to translucent. Insufficient explanation, shell -shaped fracture, brittleness. Under the X -rays, the pure red fluorescent of the emerald hair. The difference between emeralds and similar natural green gems, synthetic emeralds, and crickets. Natural green gems similar to them include fluorite, green tourmaline, phosphorus, emerald, green sapphire, chromium -containing calcium aluminum g uterry; Green, oil -injection emerald. The difference is as follows: fluorite, slightly blue green, average body, small hardness, 4, density 3.18 grams/cubic centimeter, greater than emerald, light blue blue. Green tourmaline, the dark blue green tourmaline is treated with pure green after treatment, the two -color is obvious, the double refractive index is 0.18, and the density is high. Phosphorus, light green phosphorus and limestone with a slight blue phosphorus, have a blue tone, less hardness, 5, a large discount rate, 1.632-1.667, and the ultraviolet radiator. Emerald, high -quality translucent green emerald is more like emerald, but emerald has a fiber intertwined structure, has thin fibers, and emerald has no structure. Calcium calcium and aluminum gigar, emerald green, average body, strong adulhrum. The synthetic emerald, the feldling agent growth method and the water heat method, the color is strong, the ultraviolet line has strong red fluorescence, and the color filtering mirror is clear red. There are also three layers of green stones, foil lining emerald, and oil -injection emerald, etc., and can be different from emerald. Emerald evaluation and purchase. The basis for the evaluation and purchase of emeralds is color, transparency, clarity and weight. Natural emeralds include Colombian emeralds, Ural emeralds, Brazilian emeralds and Zimbabwe emeralds. The color is more transparent, bright green, light yellow green, etc. The appearance is soft and velvet, and the parcels are common. The polarizer is bright, and there are four light and dark changes when turning 360 degrees, which is a non -average body. The multi -color characteristics under the two -color mirror are not obvious. Pink under the color filter mirror. The emerald is more crispy, afraid of high temperature, it will fade in the fire, it is easy to burst at high temperatures, and be very careful when we wear and save. Except for emeralds and sea blue gems, other colors of gem -grade green pillars are collectively called green gems. Because the content of trace or trace transitional elements often shows different colors of green pillars. The main varieties are as follows: (1) Yellow emerald (also known as golden green pillar): English name is Heliodor, derived from Greek, which means "sun". It is a transparent crystal of green pillars, because its chemical composition contains iron and is yellow, golden, and light lemon yellow. Glass luster. The refractive index is 1.570-1.575, and the double refractive index is 0.005. It has a weak green and yellow to yellow. Hardness is 7.5, density is 2.68-2.70 grams/cubic centimeter. Good toughness. (2) Rose emerald (also known as red green pillars or 铯 green pillars): The English name is Morganite, named the name of American gemstone J.P.Morgan. It is also a transparent crystal of green pillars. It contains lithium, manga or manganese, and is red and rose red. The crystals are mostly irregular. The colorware is obviously divided into phenomenon. Glass luster. The discount rate is 1.572-1.592, and the double refractive index is 0.006-0.008, which increases with the content of the cricket. The multi -color is significant, light red to dark blue and red. Hardness is 7.5, density is 2.71-2.90 grams/cubic centimeter. The fluorescence emitted under ultraviolet line is weak and bright red. Good toughness. In addition, the amethyst emerald (also known as the purple red column stone) is a purple -red green pillar stone, which looks like crystal; sea blue green pillar stone, a yellow -green green pillar stone, the color is very yellow -green olives Stone; transparent green pillars are a colorless and transparent green pillar stone; dark brown green pillar stone is a green pillar stone with starlight effects and bronze flash. The emerald is mainly produced in Weijing rock type, gas -forming heat liquid, thermal fluid type, and sand mine -type mineral bed. Countries produced in the world include Madagascar, Brazil, Afghanistan, the United States and other countries.
The meaning is lively, because it is naturally vibrant, and green represents nature