Pearl jewelry for bridal and wedding tradition, bridal pearl necklace set for wedding ceremony, pearl jewelry for graduation and wedding celebration
Tuesday, February 26, 2019
What is Pearl Rating System?
The Pearl Rating System is the green building rating system developed by the Abu Dhabi Urban Planning Council as part of their sustainable development initiative, Estidama. ... The pearl rating system is divided into Buildings, villa, and community. Each with the scale of 1 to 5 pearl.
A seashell or sea shell, also known simply as a shell, is a hard, protective outer layer created by an animal that lives in the sea. ... The shells of sea urchins arecalled "tests", and the moulted shells of crabs and lobsters are exuviae. While mostseashells are external, some cephalopods have internal shells.
Nacre (/ˈneɪkər/ NAY-kər also /ˈnækrə/ NAK-rə), also known as mother of pearl, is an organic-inorganic composite material produced by some molluscs as an inner shell layer; it also makes up the outer coating of pearls. It is strong, resilient, andiridescent.
The name is most often applied to land snails, terrestrial pulmonate gastropod molluscs. However, the common name snail is also used for most of the members of the molluscan class Gastropoda that have a coiled shell that is large enough for the animal to retract completely into.
The nucleus bead in a beaded cultured pearl is generally a polished sphere madefrom freshwater mussel shell. Along with a small piece of mantle tissue from another mollusk (donor shell) to serve as a catalyst for the pearl sac, it is surgically implanted into the gonad (reproductive organ) of a saltwater mollusk.