Opal basic classification
Natural opal is a whole natural gemstone that has been mined directly and has not been artificially treated. What we call the original opal is the natural opal that can be appreciated after being cut, polished and polished on the basis of natural opal. The original Opal is divided into the following categories: 1, black opal In the shade of the dark body, the color is bright, we call it black opal. Black Opal is the most famous and expensive opal variety produced in Leiden Ninrich, New South Wales, Australia. Black opal does not mean that it is completely black, but its body color is darker than that of the opal with a lighter body tone. 3, white opal Some people call it "milk opal." White Opal presents a light-colored embryonic hue, mainly produced in Coober Pedy, South Australia. White opal has a relatively large color tone and a relatively large yield. White opal can't be as bright and contrasting as black opal. However, the high-quality white opal with very beautiful colors is also found. 4, Shuo Shi Opal Sparkling Opal is made up of inseparable iron ore by a color that can be rendered in color, mainly in Queensland, Australia. This opal can only be cut together with iron ore. The thin color opal is wrapped on the surface of the iron ore. The color of the opal looks very beautiful due to the contrast of dark iron ore. Sparkling opals come in different shapes and sizes, small as peas, and large ones that can have a family car. Sometimes a whole piece of sparkling opal has a natural split at the joint to divide it into two halves, and there are two opal surfaces that seem polished. The thin surface layer of the opal is often destroyed during the ore cutting process. 5, crystal opal Crystal Opal can be any of the above, except that its embryoid tones are transparent or translucent. You can even see other items behind you through Crystal Opal. Crystal opal can have dark and light colored body tones, so we call them "Crystal Black Opal" or "Crystal White Opal" depending on the shade of the body. 6, the cornerstone opal A monolithic opal-like base stone is filled in a fish-toothed gap between iron or iron ore. Usually they have a nice fire color. The adamoca keke opal can be made by soaking the sample in sugar water and then boiling it in sour water to produce carbon deposits, giving it a dark background and a more beautiful color throughout the cornerstone opal. Slim Ladies Beach Pants,Woman Beach Short,Woman Swim Short,Womans Board Shorts shaoxing junjia textile co.,ltd , https://www.junswim.com