Text/Ma Yijun
Author: Ma Yijun
China Ornamental Stone 3
The name is auspicious.
Stone species red coral jade
Specification 32cm×24cm× 18cm
Collect Ma Yili.
The Jialing River Basin in Guangyuan has primitive natural ecological environment, rich mineral resources, outstanding people and rich products. A precious ornamental stone-red coral from Jialing River in Guangyuan is produced here. Because of its long geological evolution, it has been favored by people for its unique quality since ancient times.
Formation of coral rocks in Jialing River
The geological ages of Qinling, Daba, Longmen, Minshan and other natural basins in Jialing River Basin belong to Cambrian, Silurian, Triassic, Jurassic and Cretaceous in Paleozoic. Guangyuan is an ancient sea area with a large number of primitive animals. Among them, coral is a kind of marine coelenterate, which lives widely in warm and clean waters at 25 ~ 30℃. Monomers or groups. Most of them have calcareous bones. According to the number and arrangement of tentacles and septa, the nature and characteristics of bones can be divided into four corals, six corals and eight corals. Corals use tentacles to suck food from seawater to grow and develop.
Coral growth in seawater is extremely slow. Judging from the growth lines and growth lines of corals after they become fossils, it takes about 1000 years for corals with a height of one meter to grow. After coral died, its body was gradually replaced by calcium carbonate and silica in seawater. This process is called fossilization. Under certain conditions, coral stone will be jade. Coral stone has high density and hardness. Marine corals are mostly colored corals, such as white, blue, black, yellow and green corals, but there are few red corals, so red corals are more valuable. They are the main raw materials for carving handicrafts and jewelry.
Red coral is a general category name, including red coral, pink coral, pink coral, pink coral and so on. Red coral is precious because it contains trace elements beneficial to human health and because its color is pure natural. In the clean waters of the ancient sea where corals are distributed, there was a lot of volcanic activity on the seabed, which provided a lot of volcanic ash, rich in some macro elements (such as iron, copper, manganese and magnesium, potassium, sodium, etc. ) and trace elements such as zinc, chromium, nickel, etc. ). If iron is the main element absorbed by coral in the petrochemical process, then the color of coral stone is red; If the adsorbed elements are mainly magnesium and a small amount of iron, the color of coral stone will be pink or pink; If the adsorbed element is mainly magnesium, and there are almost no other impurities, then the color of coral stone may be white. In the high-incidence areas of volcanic activity in the world, including submarine volcanic activity near the ancient Mediterranean, a large number of major elements such as iron, manganese and magnesium provide an extremely important material basis for the formation of red corals. Coral naturally dies and becomes coral. In Caledonian, Variscan, Yanshan and Himalayan periods, after the orogeny of Jixian, Jiangnan, Kunming, Yunnan, Sichuan and Longshan, the marine strata of Qinling, Longmen and Minshan deposited coral and other paleontological remains. Due to the complexity and variability of crustal tectonic movement, corals are folded and fractured, and minerals are exposed. A large number of paleontological fossils and rocks are distributed on the river mantle terrace and tributary rapids in the middle and upper reaches of Jialing River after hundreds of millions of years of cracking, collapse, weathering, denudation, accumulation, erosion and flood transport. They absorb the aura of heaven and earth, absorb the essence of the sun and the moon, and evolve into countless colorful, grotesque, exquisite and natural ornamental stones like Nu Wa's smelting stone.
China Ornamental Stone 3
Brilliant starry sky
Origin Guangyuan
Collect Liu Shiyuan.
Red coral in Cihai records that coral is "the calcareous skeleton of ancient coral, a fossil preserved after fossilization ... distributed in Cambrian, Silurian and Quaternary strata. Corals in Ci Yuan: Red corals are produced in the Mediterranean, with hard bones and delicious colors, which can be used as decorations. " The top hat worn by Qing officials is made of red coral, carved coral, sapphire, lapis lazuli, crystal stone ... and finally gold and silver. Red coral is listed as one of the "seven treasures" in Buddhist scriptures. In Tibet, only temples, nobles and the rich can own it. Most of the high-quality ones are used as decorations for Buddha statues and are regarded as auspicious, rich, mysterious and respectful sacred objects. According to marine biological data, there are more than 2,000 species of corals, and there are few coral fossils in geological museum, China, and even fewer red coral fossils.
China Ornamental Stone 3
Name of producing area of pollution-free vegetables Guangyuan collecting place Guo
Coral rocks in Jialing River in Guangyuan are mainly four-shot corals and six-shot corals, mostly gray-white block-shaped chain corals and honeycomb coral pebbles, which are covered with a thin layer of gray-white quartz sand and are basically jade-like. Although it is different from the dendritic red coral stone produced on the modern seabed, it is still a rare raw material for carving works of art and jewelry, and it is also one of the carving raw materials for the "Hundred Flowers Stone Carving" arts and crafts in Guangyuan.