Pliny Opal relies on its own “beauty” has attracted countless gem lovers and also got a lot of nicknames from them – Pandora, Light of the World and Empress. Opal has different legends in different eras and different countries, but the same is all the legend, opal always has supernatural powers, making them a source of awe and miracles.
So the question is, how is this magical family gemstone necklace formed? Australian opal was formed 70 million years ago when heavy rains flooded the arid ground, infiltrating the rock below and absorbing the dissolved silica down. When the rainy season ends and the drought continues, most of the water on the ground is evaporated, and the silica is deposited in the cracks and becomes opal. Opal almost fills any gaps in the surface rock, whether it is rock cracks, wood interiors or even ancient fossils. One of Australia’s most curious treasures is the Loch Ness Monster, whose 110 million years ago bones also have opal in the process of petrochemicals. The fossil was discovered in an opal mine in Anda Muka, with an opal coating on its bones.
Opal is divided into two categories according to color, precious opal and ordinary opal, the difference between them is the use of color – whether its body is light or dark. In the precious opal, there are five main varieties: black opal, gravel opal, white opal, crystal/water opal and fire opal. Opal’s famous places of origin include Australia, Mexico and Ethiopia. Australia’s rugged inland provides a perfect geological point for the formation of opal, producing white opal, crystal/water opal, fossil opal and so on. It has been one of the main sources since commercial production began in the 1890s. In addition, there are rare black opal outputs in mines in Lightning Ridge, Australia. This Australian black opal with a strong red flash is called “jungle fire opal” and they look like the embers of the jungle burned by fire. Mexico’s fire opal is the most famous. These orange-red gems are colored with subtle iron oxide traces, and although they are as colorful as the opal heart rings of other varieties, their flame-like colors are unforgettable. Almost all of the country in Ethiopia can find a neon-red fire opal. The opal from Ethiopia is also capable of orange, green, yellow, brown and the rarest blue stripes. In 2008, a new opal was discovered in Vogel Turner, Voro province, Ethiopia, which is now the most popular opal in the country.
One of the strongest jewellery trends of the past decade has been the rise of Opal. Nowadays, the market’s awareness of opal continues to increase, and more and more jewellery stores have appeared in Opal, and no matter which kind of opal has its “fans”, the future market demand potential is even more can be expected. So when I buy Opal, what should I do to judge and evaluate? The three most important aspects are color, pattern and clarity/transparency. Opal’s colors cover almost the entire spectral color. They can be in a single color, or they can contain two or three colors, and even have a rainbow-like color. The colors that Opal presents are actually composed of body color and play color. The difference in body color is caused by the suspension of tiny impurities between the silica spheres contained in the opal. Different types of opal differences are also based on body color, such as black opal and gravel opal body color is dark tones, white opal and crystal / water opal are light tones, fire opal is mostly single body color. Generally speaking, the opal of dark tones is more precious. For example, in the case of other quality factors, many people are more willing to buy black opal or gravel opal, because the color will be more prominent in dark tones. It is even more attractive.
Clarity includes the degree of transparency of the opal and the extent of the inclusions, while the clarity standards vary for different opal types. For example, the higher the transparency of water opal, the better, and the opaque black opal is more popular. It is worth noting that if an opal’s body color is very embarrassing or ambiguous, then its value will be reduced. Like other gems, opal also has surface features such as breaks and white spots. If it affects its appearance, the value will also be affected. In addition to the most important factors above, the size of the cut and the carat will also have an impact on the value of the opal. Commercial-quality opals are often modeled as standard sizes and ovals, but the special opal of top quality is based on the principle of maximizing the color of the game. Needless to say, the carat weight does not matter, the greater the carat number, the higher the value.
As mentioned above, Opal has been relatively common, and many jewelry stores or gems have sold it, especially the commercial quality white opal, and the price is mostly reasonable. But when you have decided to buy a certain kind of opal, please make sure you have seen some high quality, special and eye-catching gemstone earrings for women. After a certain amount of knowledge and understanding, there will be many comparisons at the time of purchase. It is even more difficult to see the situation of “seeing one loves one” and “buying and regretting”. The actual black opal and gravel opal look is very fascinating depending on the budget, but natural and high quality people are always worth the price. If you like their appearance but can’t afford the price, in the case of conflict with the budget, you may wish to choose a combination opal – that is, the opal with the bottom, the price is only a fraction of black opal and gravel opal, but the appearance is equally glamorous. I like the two most important leaves in the world, and there are no two identical opals. There are differences in the high-quality Opal’s color schemes, and there is no right or wrong. Therefore, when you buy, you don’t need to be biased to believe that one of the best colors is the best, which one you like is the best.