Coral has a small shallow circular pit , which is part of the individual coral growth . Oyster pearl luster certain direction, while low magnification , showing a pole like a flame pattern . In addition , the red coral is the protection of animals at the national level , if not the country issued permits,
Is not promised to sell , so there is no business license to sell 99% of Taiwanese are not really red coral .
Imitation pearl oyster shell , can be identified by the parallel growth structure omega replica and pink gold-plated water zonation trend shells on . In addition, artificially colored fake dull monotone color , duplicity, visible with a magnifying glass 10 times between dyes in small cracks in the coral and granulocyte concentrate its red
Shallow depth outside , showing uneven coloring . Identification of dyed coral depends on its degree of staining .
Furthermore , natural corals are generally natural flaws, such as white spots , small spots , small freckles scattered at random, but very difficult to create fake goods likeness of freckles. What celluloid playing machine issued in the heating atmosphere of camphor , available fingernail scratch wood , the wood is exposed to an artificial surface under the junction
Structure , sealing wax was flow in the shape of the glass under a magnifying glass appearance .
Natural coral natural fine grain oblique transverse lines irregular , showing messy state, and manual processing of coral is showing the same texture features .
Dyed red coral is generally used cheap dyed red to white coral jewelry, tools and falsely claimed that natural red coral ( natural red coral and low production of high-value ) , this can be used to rub a cotton swab dipped in acetone under the stain . Of course, there are shoddy , such as the mass times the wax injection machine with red coral
Dyeing and plastic injection -filled way to impersonate natural red coral . You have to distinguish carefully to prevent fooled. If necessary, these can be used to identify substitute, hydrochloric , because none of them works with the hydrochloric acid .
Where Dyer , not soft natural luster , too glamorous , red no hierarchy , and was really red coral red candles , red, hierarchical , and some red and white, middle vaguely revealing the "fingerprint" ( coral calcium textures and human fingerprints similar ) and stained relatively poor imitations
Vary significantly.