Wholeale Jewelry -

Clams animals are animals with shells and other shell. Some of them have iridescent pearl-like luster, they have been used in jewelry industry, the production of shell necklaces, costume jewelry (buttons, etc.), and even installed on the jewelry, the more for the production of shell carving, collage, mosaic, etc. shank. The various types of shells in the vicinity of the Torres Strait north of Australia produced by pearl oysters, the Philippines shell, Myanmar, Myanmar giant clam shell, as well as the West Indies, the Queen's superior to other large clams.
Shellfish all over the world so much, generally can be divided into terrestrial and aquatic classes two kinds of classes. One class of marine aquatic shellfish again accounted for more than eighty percent of the total shellfish.
     The vast boundless ocean of the world, and carries a wealth of exotic marine life, marine shellfish that is one of the most fascinating creatures, marine animals, shellfish essence, mollusks, they are characterized by soft regardless of body section, from head, feet, viscera capsule, mantle and shell of five parts.
     All kinds of shellfish, a wide range of different forms. According to their physical characteristics and structure of the shell can be divided into five categories. Such as gastropods, including: snails, conch and periwinkle, etc., they are mostly a shell, spiral-shaped torsion; bivalves, there are clams, oysters and scallops, etc. in this category, there are two shells, showing flap shaped; cephalopods. Including squid, nautilus and octopus and so on, this type of case to individual, most will be formed within the shell pack into the mantle within the shell. Or have been degraded disappeared; multi-plate of the shell as many as eight, saying that the shell plate; Tusk class is only a shell, shell top forward, bending the membrane surface, pale hat-shaped. 5 kinds of categories, the former two types of share amounted to 80-90% or more. After the three categories, in particular, multi-plate and Tusk both in the types of classes or patterns change the far and the former two categories.
     Typical shells are three-tiered structure: the outer layer to have layers, containing corner substances, known as the shell elements, is a hard protein, tolerance to acid corrosion; middle thick layer or shell, said prism; inner layer of leaf shaped aragonite structure very glory, saying pearl layer. The outer and middle back from the edge of the outer membrane secretion formed, and the inner surface of secretion by the mantle all.
     Shell accounts for 95% of the composition of calcium carbonate, and other ingredients are magnesium, iron, calcium phosphate, calcium sulfate and silicate minerals, as well as a small amount of organic matter such as shell elements. Some shells do not necessarily three-tier structure in place, such as there is no cuticle Pinnidae shells, cuttlefish and squid is only within the shell, the structure is equivalent to prismatic layer or cuticle.
     Many beautiful shells have bright and eye-catching colors, the strange appearance with ornate patterns. Some conchoidal, such as hats or caps; some was top-shaped, cone-shaped, pagoda-shaped, disc-shaped; while others, like horns and so on. Are significant differences between the size of the shell, such as the Hong pupa Lo (also known as millet snails) as small as the body was 0.03 mm; Tridacna shells up to 1.8 m largest, weighing up to 500 kilograms. Shellfish, the shape of thousands in terms of species; the color is concerned, includes almost all of the natural color; the stripe, the more strange things, amazing. It can be said that there are 120,000 kinds of shells and 120,000 kinds of changes in