Grape stone is also known as "green birch", a silicate mineral. Usually they appear in the hollows of igneous rocks, and sometimes they can be seen on stalactites.
The color of the grape stone ranges from light green to gray, as well as white, yellow and red, but the common color is green, and the yellow is extremely rare and precious. Both transparent and translucent. They are in the form of plates, sheets, grapes, kidneys, radial or massive aggregates. A good quality grape stone can be used as a gemstone. This gem is known as the Cape of Good Hope emerald.
Grape stones are rare gemstones that are usually cut into facets or engravings. Grape stone shows the cat's eye effect is very precious but rare. Grape stone has become a popular accessory.
Grape stone, produced in Zhangzhou, Leshan and other places in Sichuan Province. There are a number of raised color blocks on the stone surface, which are like grapes, hence the name. The grape stone is round and smooth, crystal clear? Cute, with the contrast of the particles and the base color, the grain is large and round, and it is better to form a figure in the form of a relief. Some of the grape stones are rounded and granulated by gravel, and some are formed by the geological action of high temperature and high pressure in the diagenesis process. Some of the grape stones have some structural textures or cracks interspersed between the grape granules, and the shape of the plum blossoms on the epiphytic branches is called plum stone.
High-quality grape stone will produce a kind of "fluorescence" similar to the glass type of jade, very beautiful, the color of the grape stone is dark green - green gray green - green green - yellow green yellow green - yellow colorless, etc., occasionally gray. However, in general, the green-tone grape stone must have a yellow or gray color, and the yellow-tone grape stone is usually brighter but not brighter with a gray tone. In general, the color is not pure enough. The good grape stones are usually aggregates, dark green. However, in general, this material has few single crystal facets due to the cleavage and development of single crystals, which is relatively rare.
The hardness of the grape stone is low, please be careful not to rub against the hard object when wearing. It can usually be washed with water and not exposed to alkali.
Whether it's decoration or investment in the collection of grape stones, experts, businessmen and gem lovers are undoubtedly the value of the grape stone.
First, the aesthetic value. The color of grape stone is dark green, yellow green to colorless, and even high-quality grape stone will produce "fluorescence" similar to glass jade, very beautiful and very ornamental.
Second, the collection value. The color of the grape stone is mainly green, while the yellow-based grape stone is rare, and the yellow color usually has a gray tone. The bright golden color that people like is extremely rare and collectable.
Third, the economic value. The economic value of grape stone is not only reflected in the whirlwind of investing in colored gemstones in the market in recent years, but the beauty and rareness of the grape stone itself is one of the reasons for the grape stone to be pursued.
Grape stone symbolizes wealth and hope. If you are a person who is not satisfied with your career and life, you can wear grape stone, maybe you can help you to transfer. The common green grape stone helps the heart and lungs of the human body. The effect of grape stone makes people healthy and cheerful, with affinity and increased self-confidence. When the business is not good and the mood is not good, the grape stone can also reduce the pressure and calm the nerves.
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