In gemology, gemstones are generally divided into precious gemstones and semi-precious stones. There are many varieties of semi-precious stones, and different semi-precious stones have different characteristics, identification methods, and different values. The three semi-precious stones that I want to introduce to you today are Aquamarine, Topaz and Morgan Stone.
Aquamarine
Do you like to go on holiday by the sea? Then you must like aquamarine! It is the birthstone of March, the English name Aquamarine. Among them, "Aqua" means water, and "Marine" means ocean. It can be seen how much the name of the stone is attached to its color. Since ancient times, aquamarine has been regarded as a lucky stone by sailors. Aquamarine is very eye-catching in a less bright environment, transparent and more shiny, which has earned it the reputation of “Queen of Night Gemâ€.
Both aquamarine and emerald belong to the beryl, which have good hardness and luster. The emerald is rich in emerald green with chromium or vanadium, while the iron makes the aquamarine elegant. Although they belong to the same family, the price of emerald is higher than that of aquamarine. However, God is fair, the aquamarine's clarity is generally good, the output is also larger than the emerald, and often there are large particles of high-grade gemstones. So even ordinary people have the ability to have a top grade aquamarine.
Since most aquamarines are not strong, if the volume is too small, the color will not be displayed well. The same color, if the gems are large particles will change a lot, the blue tone will also look a lot more. The principle is similar to the difference in color between the water in the washbasin and the pool water. Excellent cutting can make the reflection of the blue of the gemstone stronger. Its light blue elegance is never frivolous, so it's easy to match. Aquamarine is currently very popular in the international market, and Europeans and Americans like this gemstone that echoes the color of their eyes.
Topaz
Topaz has colorless, brownish yellow, light blue, blue, pink, honey, maroon and so on. Topaz has a good hardness and a Mohs hardness of 8, which is not easy to wear. Even if the cutting surface is small, the edge of the gemstone is still sharp and shiny, and the transparency and gloss are also good.
In the 17th century, in order to show off the rich financial resources of the rich world, the Portuguese royal family was inlaid with the largest diamond weighing at 1640 carats, Braganza, in the crown of the king. This incident was very sensational in the past, but in modern times, after the identification of scientists, it was found that Braganza is not a diamond, but a huge colorless topaz. This gemstone, which has long been carrying a diamond identity, has finally recovered its bloodline. The main producing area of ​​Topaz is Brazil, and Sri Lanka, Australia, the United States, and Xinjiang of China also produce.
Topaz is a mid-range gem. But the natural wine yellow and sky blue varieties are still more precious stones. The yellow color of sherry is the highest, followed by light blue, pink and yellow again, and the colorless topaz has the lowest value.
The most common in the market are blue and pink topaz. However, more than 99% of them are made from the original colorless or brown topaz, which is converted by radiation and high temperature. The bright pink and blue topaz of natural colors are very rare in China at present, and the international market price is also high. The price of irradiated topaz is much more intimate, and the price of blue topaz is much lower than that of aquamarine. However, the price of topaz is still higher than that of crystal.
Morgan Stone
The Morgan Stone is a pink beryl, an intimate of emeralds and aquamarine, but its popularity in China is less than that of the former two. In the beryl family, there is a sense of “deep knowledgeâ€. The color of the Morgan stone is orange red and purple, which is unusually beautiful. It is so bright pink because it contains manganese. In addition, because it contains both lanthanum and cerium, the specific gravity and refractive index of the Morgan stone are higher than ordinary beryl.
The most famous origin of Morgan Stone is San Diego in the United States. In addition, it is also produced in Minas Gerais, Madagascar, and the Himalayas in Asia. Due to the scarcity of production and the popularity of the European and American markets, it is rare to see the brilliant pink Morgan stone in the Chinese market. However, in some shopping malls, you may see a small amount of products that are quite light, and the salesperson will be very enthusiastic about how rare and precious the gems are.
But in fact most of these "Morgan Stones" are yellow beryls that have been optimized for heating and have a lower value. If you want to buy a real color magnolia stone, in addition to a certain economic strength, it is necessary to find a reliable jeweler.
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