Things to know about the Coral
The coral is a natural and organic material, substantially is calcium carbonate, therefore, is susceptible to the aggression of chemical agents such as perfumes, some creams, soaps and the long run also of human sweat. It is advisable, therefore:
- rub occasionally coral with a dry cotton cloth or slightly damp, but without any kind of soap (some recommend that the cloth is moistened with liquid wax);
- to have the foresight to not let go of the coral jewel in direct contact with the substances listed above, for example use perfume before wearing coral jewelry and not after;
- not to keep near heat sources, such as, for example, spotlights; exposure to intense heat, in fact, can change the tonality or even color of the coral.
There are different ways to polish the coral but at home the only procedure that can be used is wipe it with a dry cotton cloth or a maximum wet. If you need a cleaning stronger, and you wish to use soap at least you have to use neutral soaps and avoid those that are too strong, type detergents for dishes and, in any case, do not leave too much of the coral to the contact of the soap, which might discoloration; so take the neutral soap, rub it with soft cotton and then rinse immediately with running water and then dry thoroughly. If the coral does not just have to go back shiny entrust it to expert hands.
Factors contributing to the price of coral are various and generally relate to characteristics linked to rarity; first among them is the size; then there is the origin (according to the origins, in fact, the coral has different varieties) .Other factors influencing the assessment are possible porosity that devalue the coral. In the case of cameos or sculptures carved in coral is the hand of the artist who can give a further and higher added value.
The coral is obtained from coelenterates colonies, formed by polyps that grow construct a skeleton of calcium carbonate, which acts as their support and protection. There are two types of octopus, six and eight tentacles. Jewelry manifacture are used those eight; infact the hexacorals (those of coral reefs) for their characteristics of poor compactness are not suitable for this purpose. The corals used for manifacturing are caught mainly in the Japanese seas and the Mediterranean ones. The most common color of the coral is red in his shades to white that are distinct commercially: coral brown, red, pink, angel skin, white.