Beautiful coral jade can be traced back to calcified coral rocks formed in Paleozoic, Mesozoic and Cenozoic from 250 million to 300 million years ago. Later, after crustal movement and volcanic eruption, due to a large number of volcanic activities on the seabed, these activities provided a large number of volcanic ash materials, which contained a certain amount of macro-elements and trace elements.

Due to the crustal movement, massive volcanic activity on the seabed and the uplift of the seabed crust, coral stones were subverted in the crustal rocks. After hundreds of millions of years of long and complicated crustal activities, coral stones combined with some silicon elements and were replaced. Under certain conditions, coral stones will become fossil jade (just like Paleozoic trees were replaced by silicon dioxide and evolved into tree jade). The density of coral fossils is higher than that of coral stones (generally about 2.7 to 2.9), and the hardness varies from 5 to 8. Because the types of marine corals are mostly red, blue, black, yellow, green and white corals, corals have become synonymous with precious corals and are one of the main raw materials for carving works of art and jewelry.

Coral fossil jade is the only living spirit in jewelry with a history of one billion years. It is beautiful, shiny, crystal clear, warm and pleasant. Coral jade jewelry is a symbol of good fortune, which has the functions of nourishing face, promoting blood circulation, improving eyesight and exorcising evil spirits. Wearing coral jade carving jewelry can promote blood circulation, so it can be called an observation station of human essence, qi and spirit. The collection of red coral fossils, jade and strange stones is the whole treasure of Tongling Town House. For hundreds of millions of years, no matter what the wind and waves are, it can bend and stretch and stand firm. It takes a thousand years to cultivate beauty, and a hundred million years to cast coral jade. Therefore, coral fossil jade has become a unique treasure in people's minds.

In ancient times, coral was regarded as an auspicious and happy thing, representing nobility and power, also known as "Ruibao", and a symbol of happiness and eternity. Coral fossil jade is regarded as a precious gem in Taiwan Province Province and American Indians, as well as in the collections of Chinese and Western scientific circles. Known as "red gold" by the ancient Romans, it is listed as one of the "seven treasures" in Buddhist scriptures, and the coral stone of the Ming Dynasty has been collected by the Royal Jewelry Wenhua Hall.