Identification of red coral simple method : Longitudinal Look : Coral parallel vertical growth pattern, the direction parallel to the coral cylinder. Wherein : This stain if not handled properly, will fade very fast . You have to distinguish carefully to prevent fooled.
Identification of dyed coral depends on its degree of staining . In other words, the coral color is uneven , if the color is consistent within and outside the coral , we should suspect a fake ! All kinds of jade imitation coral : a stain from a settlement with dolomite stone .
Smooth is not a fake, but the red coral is the protection of animals at the national level , if not the country issued license is not promised to sell , so there is no license to sell 99% of businesses are not real red Taiwanese jewelry tools coral. Wherein : the texture is very light , color
Easily fade , no natural texture and shine. Pearl oyster shell with refined into white fake white coral beads , shells can be identified by the parallel growth of what playing machine structure and pink zonation trend. Its characteristics: smooth, rough fragile, easily color transformation . Because people
Workers dull monotone color dyed fake , duplicity, visible with a magnifying glass 10 times between dyes in small cracks in the coral and granulocyte concentrated , deep inside its red light outside , showing uneven coloring
Imitation coral is the main substitute, celluloid , wood and sealing wax , of which no one has a unique appearance coral . By certain types of marine life caused by perforation of small pits may exist. You can see there concentric growth lines , are generally coral ornaments . If it is to quit
Surface , usually in the back , if it is carved pieces , on the surface there . Plastic dyed coral : the use of plastics dyed red coral.
Because the low production of red coral and high-value , it is often someone with low white coral dyed red to falsely claimed that natural red coral .
Several common fake red coral : white coral dyed : commonly known as the sea of bamboo , which is characterized by a very significant vertical texture , texture rough .
Other distinguishing characteristics of the coral is a small shallow circular pit , which is part of the individual coral growth wax injection machine . If necessary, these can be used to identify substitute, hydrochloric , because none of them works with the hydrochloric acid . Issued on celluloid plating heating water
Camphor flavor , wood available fingernail scratch , exposed wood structure under the artificial surface , sealing wax was flow seemed to be under a magnifying glass glass appearance.
Coral colors look somewhat similar and completely different pearl oyster , oyster pearl luster certain direction, while low magnification , showing a pole like a flame pattern . See color: coral color is from the inside out , for example: a coral pillar , the closer the surface
, Coral darker , more inner layer , the lighter the color .