Pearl

ETYMOLOGY: Possibly it comes from the greek "bíryllos" meaning brightness. or derived from a type of mollusk (perna in latin) or relating to its spherical shape (in latin sphaerula).

CRYSTAL SYSTEM: Orthorhombic, microcrystalline.

PRINCIPLE OF FORMATION: The beads are prepared by saltwater bivalves (mainly gender Pinctata), some freshwater bivalves, and sometimes by some gastropods. The pearls are the result of a reaction that takes place before foreign bodies that penetrate between the shell and the mantle of bivalve and gastropod or even managed to penetrate within the mantle, called the epithelium, forming the shell through excretions of nacre, but thus also covers all foreign bodies staying in this area.

NATURAL PEARLS
Natural pearls are considered those that originate in nature without human intervention, both at sea and in freshwater.

SALTWATER PEARLS
The pearly saltwater mollusks inhabit elongated banks near the coast about 15-20 m deep. They are the size of the palm of the hand and typically live 13 years, their habitat has been on warm on both sides of Ecuador regions.

PEARLS
These cultured pearls are not an imitation but a natural product originated with the collaboration of men, there are pearl fisheries both at sea and in freshwater.

SALTWATER PEARLS
Man induces the production of pearls by introducing foreign bodies inside molluscs, ara This winch is fabricated spheres of pearl from a freshwater mollusk and then surround it with a piece of the mantle epithelium perlifero mollusk, PINCATA martensi, and later implanted into the connective tissue of another perlifero mollusk. The epithelium introduced section remains functional and acts as perlifero sac secrete nacre. The most important in the formation of pearl epithelium element is not the foreign body. 1977 from a kernel the mollusk is provided for producing pearl sooner the core size is 6-7 mm for molluscs three years. the animals are kept in bays, in plastic cages and hung between 2-6 m deep in a bamboo rafts.

FRESHWATER PEARLS
epithelium sections 4 x 4 mm, usually without hard core, are implanted into the freshwater mollusk Hyriopsis Schlegeli. In each implementation, one perlifero sack is formed with a bead. After 1-2 years, and the beads have a size of 6-8 mm, therefore it is separated from mollusk, are coated with another epithelium and re-introduced into the mollusk to improve its form.

CLASS MINERAL: Organic Stone.

CHEMICAL FORMULA, MINERAL ELEMENTS: Calcium carbonate + water + organic matter.

HARDNESS:   2.5 - 4.5 on the Mohs scale.

FIELDS: China, Japan, Persian Gulf, India, Madagascar, the Philippines, New Zealand.

MYTHOLOGY: In the Middle Ages, and in the immediate aftermath, getting pearls had a certain importance in poor rivers in lime and rich in oxygen from the Ore Mountains and Fichtel, Pfalz (Germany), the Bavarian forests (Bavaria / Germany), in Europe pearls were the exclusive privilege of the rulers. It is believed that the Swedish naturalist Carl v. I Linnaeus the first to get fully rounded pearls cultivating freshwater mollusks in 1761. The modern rounded pearl cultivation is based on the research of the German zoologist F. Alverdes and Japanese T. Nishikawa, O. Kuwabara, T. Mise and K. Mikimoto in the 1920s.

PROPERTIES: It is said that the pearl is bring good fortune to the person who owns and also attracts happiness and good energy. Likewise, and as the stones of innocence can say that people are really useful when looking for spiritual balance. Helps clear the mind and to be more humble. It is a symbol of strength and perseverance as well as desarrollo.simboliza love, patience, purity of mind and soul and fidelity. It acts as a sponge absorbing the negative energies, either themselves or others.
 

CHAKRAS: Throat.

ZODIAC SIGN: Libra.

USES: Jewellery.