4 thoughts on “What is Shandong Bantan?”

  1. Shandong sapphire is a sapphire produced in Changle, Shandong, China.
    The gemstone is existed in the form of the third alkaline basalt and the residual accumulation layer near the third discipline, and it is mainly blue sapphire, but the color is mostly dark and the value is not high.
    In addition to the dark blue to the blue blue, there are also a small amount of blue -green, green and blue, and a small amount of yellow, brown -red, and a lot of red and blue gems at the same time.
    Extension information:
    The biggest feature of sapphire is uneven color. It can be seen that parallel six -square column surface is arranged, and different straight bands and growth patterns. Polyetry dual -crystal development, common louver -style dual -crystal pattern. The cracks are mostly cracked along the dual -crystal surface. In addition to the common characteristics of the world, sapphires with different two -colored nature, in addition to the common characteristics of the above -mentioned place, are also characterized by different origin.
    Apphire and ruby ​​are sisters gemstones. They belong to Jade Minerals. They are the hardest natural minerals on the earth except diamonds. The basic chemical ingredients are alumina. In addition to the starlight effect, only transparent or transparent and colorful rigidity can be called gems.
    This of red and chromium -containing jade is red, so it is called ruby. The blue sapphire (Sapphire) contains trace titanium and iron.
    In fact, except for the red gemstone in red, all other colors of Gangyu are commercially referred to as Sapphire. Therefore, sapphire (Sapphire) does not only refer to blue gems.
    It, in addition to its complete blue series, it also has yellow, pink, orange and purple, etc. these colorful sapphires (SAPPHIRE) are collectively referred to as Sapphire (Sapphire). Essence
    Reference materials Source: Baidu Encyclopedia -Shandong Smurra
    Reference Data Source: Baidu Encyclopedia -sapphire

  2. At present, domestic sapphires are divided into sapphire and black sapphire. Sapphire is the sapphire with better transparency. It is mainly embedded in valuable metals such as gold and platinum. Black sapphire is a new term proposed by Shandong Shuoran Gem Company recently. The company now controls the 75%market share of the Chinese black sapphire market. Black sapphire is actually low -end sapphire. The force is his price, like an AA -class 4x6 egg -shaped black sapphire only 2 yuan, the price is very tempting, so many domestic and foreign silver jewelry manufacturers have begun to purchase such sapphires in large quantities to develop new competitive products. The price If it is not high, it can increase the value of the product. Our company is to purchase such sapphires to compete for the market and achieve good results! According to the grading method provided by the gem company:

    From good to times): AAAAA level, AAAA level, AAA level, AA class, AA class

    black sapphire (from good to second): AA, A-level, A-level, B level, level, level, level, level, level, level, B , Class B, C -Class

  3. Sapphire is a specialty of Changle County, Shandong Province. Therefore, Changle County also won the name of "China Gem City". The following is an introduction to sapphire, you can find out.
    A sapphire is the unique precious resource in Changle County. The reserves ranks first in the country, with a mine area of ​​360 square kilometers. Since the discovery of mining in 1986, previous county committees and county governments have taken the jewelry industry as the leading industry of our county. Investment of 100 million yuan has built three large -scale jewelry production, processing, and trading bases of Gemstone World, Changle Jewelry Street, and Wutu Town Gem Trading Market.
    The county -level treasure jade association with education, service, coordination, management, and supervision functions was established in the country. The only jewelry trading center specializing in gemstone jewelry processing, wholesale, and retail business was built in the province. The five -time national jewelry exhibition conference was successfully held, with more than 7,000 Chinese and foreign merchants, with a total turnover of more than 100 million yuan. At present, the county has more than 40 large -scale jewelry processing enterprises, more than 3,000 jewelry processing industry households, 40,000 personnel engaged in gem mining, processing, and operations, 5 million carats in the annual processing gem Mei, initially formed a complete industrial system from gem mining, processing, scientific research to jewelry production.
    /This is the website of China Gem City, and there are many sapphires in it. You can go in and take a look. If you want to know more gem companies or sapphire information, you can send me an email, let's communicate.

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