Which is more expensive, opal or agate?
There is no comparability between the two. Opal and agate are both top grade and cheaper.
There are many varieties of agate. If agate naturally forms a specific pattern or meaning, the market will also give it value space. The word opal should also be made clear. The real opal refers to the golden emerald cat's eye, which can only be called opal. Opal is one of the five precious stones. In addition, there are many kinds of gems with cat's eye effect, but they can only be called xxx cat's eye, not opal, such as tourmaline cat's eye, jasper cat's eye and so on.
The difference between opal and agate
Cat's eye, that is, "golden emerald with cat's eye effect". Also known as "cat's eye", "cat's eye", "cat essence" and oriental cat's eye, it is a rare and precious variety in jewelry, also known as Alexander's cat's eye, which has both discoloration and cat's eye phenomenon. Opal is one of the rarest and most precious emeralds. Only Sri Lanka is produced in the world, and the price is quite expensive. /kloc-It's hard to see domestic shopping malls above 0/0 carat. Opal is named because it is as flexible and bright as a cat's eye and can change with the intensity of light. This optical effect is called "cat's eye effect".
Agate, also known as agate, Kate Ma and agate, is a kind of chalcedony mineral. It is usually a banded rock block mixed with opal and aphanitic. Its hardness is 6.5-7 degrees, its specific gravity is 2.65, and its color is quite layered. Translucent or opaque. The primitive form of tripartite crystal system. It is often dense and massive, forming various structures, such as breast, grape and tuberculosis. The common structure is concentric circles. Chalcedony has different colors, usually green, red, yellow, brown, white and so on. According to patterns and impurities, it can be divided into onyx, silk-wrapped agate, moss agate, castle agate and so on. Often used as plaything, ornament, ornament or ornamental. Agate balls can often be seen in ancient funerary objects.
Opal shopping tips
Opal is precious, so we must pay attention to avoid buying counterfeit products. When buying opal jewelry, you can put the cat's eye under the lamp, and then you can clearly see that it emits very clear light, and when it rotates, the light bar will shake left and right. This is the discoloration phenomenon of opal. It should be noted that there are other kinds of gems that can show dazzling deformation effects like cat's eyes, such as calcium carbide, apatite and blue crystal. And there is a mineral that has the same effect as the fibrous structure of asbestos, that is, tiger's eye stone, but its value cannot be compared with cat's eye.
In addition, you need to pay attention to the eyeliner of opal when buying opal jewelry. Eyeliner should be straight, even, uninterrupted, clear and not cloudy, bright and not gloomy. Of course, you also need to pay attention to the weight of gems. The greater the weight of a gem, the greater its value. At present, opals with a diameter of more than 5 cm are very rare on the market.
Efficacy and function of opal
1, opal promotes blood circulation, helps people to enhance their memory, and also helps people to relieve fatigue.
2, promote cell metabolism, activate cells, thereby accelerating the metabolism of the human body, so that harmful substances in cells are excreted and endocrine disorders are balanced.
3. Promote inflammation regression, eliminate swelling and pain, and improve symptoms such as gastritis, enteritis, nephritis, arthritis, shoulder and neck spondylitis and lumbar muscle strain, which is of great help to middle-aged and elderly people.
4, it can also regulate blood pressure in two directions, and people with hypertension can use it to lower blood pressure.
5. Improve the oxygen-carrying function of red blood cells and reduce blood viscosity.
6. Enhance and improve human immune function, improve human resistance to diseases, and have therapeutic effects on various senile diseases such as heart disease and coronary heart disease.