Fritillaria is the inner layer of the protective shell of some shellfish, including abalone, oyster and mussel. The structure of Fritillaria is mainly a thin layer of calcium carbonate. The flicker change of iridescent color comes from the detention and reflection of light waves in it. In the long history of human civilization, Fritillaria has been used as an external decoration and mosaic material.
Extended data
Uses of Fritillaria:
Compared with pearls, Fritillaria mother-of-pearl is actually more versatile. Fritillaria and mother-of-pearl are durable and have a history of thousands of years from jewelry design to architectural design.
14th century was popular among European aristocrats, from handles to clock faces, from furniture to jewelry boxes. Although mother-of-pearl has been used to make various handicrafts as early as the Middle Ages, its application in wristwatches has gradually become popular since the watch era.
Fritillaria plate is taken from the shells on the seabed, and the shells with large heads and no abnormal inner walls are selected for processing. Skilled masters use drilling machines to get shells suitable for surface parts. Under the action of high-speed rotating machines, Jin Gangzuan can take off shell embryos one by one.
The shell embryo taken down needs cleaning, grinding, polishing, copper pasting on one side and other processes before it can be initially formed. Later, according to the different needs of customers, print, nail and paste, and finally the finished product you see is so bright.
After processing, it is installed on the watch, bringing eternal beauty. Because of the uniqueness of Fritillaria, each watch is difficult to be similar. Its surface is unique, just like human fingerprints.