www.winbowgems.com gemstone supplier tell you Coral common sense

www.winbowgems.com gemstone supplier tell you Coral common sense

Can be divided into shallow coral reef and deep-sea corals. Distribution of a wide range of shallow coral reef, Pacific, Indian Ocean, the Atlantic Ocean are located in shallow waters, many coral islands formed. Shallow coral jade density is less than 2, the hardness is less than 2, it can not be used for carving works of art materials available for viewing only as rocks. Also known as shallow water coral reef coral reefs by developing into a platform that can greatly ease the typhoon, storm surge and other natural disasters, the destructive effects on the marine ecosystem. Therefore, the World Environmental Organization passed a resolution to prohibit the harvesting of shallow water coral reefs, to protect the land area will not be violated. Deep-sea corals, also known as precious corals, are generally growing coral at depths of 200-300 meters, it is the distribution in the world has some limitations. Because of its petrochemical process is completed in the deep sea, so it's pores smaller, higher density (typically between 2.5-2.8, compact structure, changes in hardness between 3-4) into a variety of art and jewelry coral sculpture Jewelry of the main raw material, so called precious coral. Because deep-sea corals in the most precious red coral, because some, red coral has become synonymous with the precious corals. Red coral can be divided into crimson by the color of coral, pink coral, coral was white, white coral five categories. Red coral color is one common concern. Many people think that is dyed red coral, red coral color is actually a natural formation. The precious red coral of the Department is also here. So, what color is it formed? It turned out the distribution of deep-sea corals in the Red waters, the seabed is pregnant with a lot of volcanic activity, these activities provide a lot of ash material, which is rich in volcanic ash in a certain number of major elements (if any color element of iron, manganese and other elements of magnesium, and colorless potassium, sodium, etc.) and trace elements (such as shovels, strontium, chromium, nickel, etc.). Coral death, left behind a water absorption of calcium in the bones of various elements, if a large number of iron absorption, then the coral color is red. Similarly, if a large number of adsorption of magnesium, plus some iron, then a pink or coral pink color to white. If the magnesium-based, with little other impurities, then the coral color is white, deep in the white coral jade is a rare treasure. Distribution of deep-sea red coral in the world in three main areas: 1. Taiwan area, Japan's southern island, including the Ryukyu Islands; 2. The waters surrounding the Hawaiian Islands; 3. Mediterranean coast to the Italian peninsula, mainly in southern waters. gemstone wholesaler in china