NOUVELLES

charm bracelets The “Fire Tree”, one of the Seven Treasures of Buddhism-Coral

Posté le par Joyjy

Coral grows in a specific sea environment. The dendritic aggregate formed by the calcium secreted by coral insects is called the “fire tree”. It is listed as the Seven Treasures of Buddhism alongside gold, argent, perle, agate, amber and colored glaze. Parmi eux, red coral is the most precious, regarded as a treasure in the sea, the best in the hidden. Coral is one of the important raw materials for arts and crafts carving, and it is also a medicinal material for traditional Chinese medicine.

Coral is brittle, foams strongly when exposed to hydrochloric acid, without fluorescence. The colors are blue, rouge, rose, orange, and white, among which red and pink are the most popular, and black horny corals are rare. The red color is formed when corals absorb about 1% of the iron oxide in the seawater during the growth process, and the black color is due to organic matter.

Color and blockiness are the basis for coral evaluation. Colored ones have higher quality than white ones, and the colors are beautiful, bright and pure. Red coral is the most precious. The larger the coral block, le meilleur. The value of coral is also influenced by the customs of various places. Par exemple, the Arabs prefer bright red, while pink is popular in Europe.

Calcium carbonate coral has a dendritic structure, with small holes on the surface, and a radial cross-section. When cut into small round beads or semi-round beads, the branch structure can be seen. Reacting with dilute hydrochloric acid can produce a lot of bubbles.

Dyed marble imitation coral: uniform red, with granular structure, no concentric structure in the cross section, no uneven stripes, wipe with a cotton swab dipped in acetone, the cotton swab appears red.

Red glass imitating coral: shiny glass, contains bubbles, does not foam when exposed to hydrochloric acid, and has a shell-like fracture, while the coral is smooth.

Pink plastic imitation coral: It does not have the band-like structure unique to corals, and has traces left by molds. It does not foam when exposed to hydrochloric acid.

“Gilson” synthetic coral: fine-grained structure, no band-like structure with slight differences in color or transparency of natural corals can be seen. The relative density is 2.45, which is smaller than natural corals.

Corals are the products of warm oceans and are found in the seawater near the equator and the equator. From a traditional point of view, the important producing area of ​​high-quality coral is the Mediterranean Sea, and the Red Sea in Africa is known for its many coral reefs. En outre, there are good quality corals in Spain, the Sea of ​​Japan, Keelung in Taiwan and the Penghu Islands. 80% of the world’s red coral production is produced in Taiwan.

 

Conception du fabricant de bijoux OEM / ODM Custom Vos propres bijoux

Commençons : mo@kingjy.com

 

Guangzhou jinging se concentrer sur les colliers de bague en gros personnalisés bracelets boucles d'oreilles en argent sterling 925 bijoux,Gold en argent sterling plaqué avec 18k,14K,24K or jaune,or blanc et or rose.Il est capable de personnaliser des bijoux en argent sterling divers design,marque de logo ou d'autres mots par gravure laser selon l'exigence du client.

Notre capacité de production mensuelle est à la hauteur 50,000 Pièces Bracelets Collier Boucles d'oreilles Bijoux.,boutique de bijoux,magasins de sortie,Bijoux grossiste,Traders and Jewelry Brand Company,Professionnel fournit des bijoux personnalisés et une production de masse de haute qualité 925 Service de bijoux en argent sterling.

 

Conception du fabricant de bijoux OEM / ODM Custom Vos propres bijoux

Commençons : mo@kingjy.com

 

Guangzhou jinging se concentrer sur les colliers de bague en gros personnalisés bracelets boucles d'oreilles en argent sterling 925 bijoux,Gold en argent sterling plaqué avec 18k,14K,24K or jaune,or blanc et or rose.Il est capable de personnaliser des bijoux en argent sterling divers design,marque de logo ou d'autres mots par gravure laser selon l'exigence du client.

Notre capacité de production mensuelle est à la hauteur 50,000 Pièces Bracelets Collier Boucles d'oreilles Bijoux.,boutique de bijoux,magasins de sortie,Bijoux grossiste,Traders and Jewelry Brand Company,Professionnel fournit des bijoux personnalisés et une production de masse de haute qualité 925 Service de bijoux en argent sterling.