Besides seasonal jade, seasonal jade also contains chromite, sericite, lepidolite, hematite, glaucophane and other minerals. Quartzite jade is white when it is pure, and rich in color if it contains impurities.
Because timely is one of the oxides of silicon, the main chemical composition of timely jadeite is silicon dioxide. According to scientific research, timely jadeite is the second richest ore in continental crust, second only to feldspar. The chalcedony, agate, Dongling jade, secret jade, Beijing white jade, wood-changed stone and jade that people see every day belong to the category of seasonal jade.
Seasonal jadeite is usually produced in rock caves, while massive seasonal jadeite is produced in hot vein minerals, while granular seasonal jadeite is an important part of granite, gneiss, sandstone and other rocks. It can be said that there are many varieties of seasonal jadeite, and because there are many varieties of seasonal jadeite, it is often used to carve jewelry or hard stone.
Brief introduction of yingshiyu
The mineral composition of seasonal jadeite is a triangular crystal system, which can be fine-grained, microcrystalline, aphanitic and micro-aphanitic granular polycrystalline, or block or strip. The main component is silicon dioxide, and there are a few impurity elements such as calcium, aluminum, magnesium, potassium and sodium. Seasonal white jade produced in Kunlun Mountain is commonly known as Kunlun white jade, and it is also called Xinjiang white jade because it is produced in Xinjiang.
The hardness reaches 6.5, jade is beautiful, acid and alkali resistant, not afraid of sweat and dirt, white and beautiful, and good white and flawless materials are scarce. Seasonal jade produced in Tuojiang, Sichuan, is commonly known as Daqian jade because of its variety, rich color and high commercial value.