Pearl Stone Beads
Pearls
occur naturally and from the ancient period of time, these have been
using in making jewelry. We can get the references from the Bible
and the Quran about the applications of pearls in making jewelry.
During the ancient Hindu civilization, these were also used in
making jewelry. In the ancient period of time, pearls were used less
frequently in making earrings and also in making necklaces. Pearl beads are occurred naturally and these beads belong to the "Natural rare bead" category. According to their sources of availability, these beads can be classified into two broad groups. One is "Fresh Water Pearl Beads" and other is the "Salt Water Pearl Beads". Some pearl beads can also be made artificially. In artificial manufacturing process, a chemical reaction is allowed to take place in the organic gem that is present in the oysters. Pearl beads have an adoring and smooth appearance. These beads are the synonyms of beauty, quality, uniqueness and outstanding value in real sense. These pearl beads are available in different body colors and these also have several surface chromas. These beads are considered as June birthstones.
For making jewelry out of pearl beads, there are several prevailing techniques . According to the oldest technology, silk thread was used for making necklace and the beads were strung into it. Between every two beads, a knot was put on the silk thread, so that each bead could be kept at a certain distance. But, during the 21st century, instead of a silk thread, we have been using stainless steel bead stringing wire.
Pearl Stone
Chemical Formula: Contains nearly 92% calcium carbonate (CaCO3) held together by conchiolin 6% and has 2% water.
Mineral Name: Pearl
Color: Pink, cream, gold, black, and white
Hardness: 3.0- 4.0
Specific Gravity: 2.60 - 2.78
Pearl is a smooth, lustrous, variously colored deposit, chiefly calcium carbonate, formed around a grain of sand or other foreign matter in the shells of certain mollusks. Highly valued as the most famed gemstone, pearl is recognized for its beauty and elegance. Pearl is a pathological formation in pearl oyster, formed due to the entrance of a foreign particle into the gap between the body and the shell of the pearl oyster. The irritation caused by the foreign particle makes the oyster take out a secretion to cover the particle. This when dried, again creates irritation to the animal, so it covers it with its secretion again- the continuous process continues for 3 to 6 years to produce a precious pearl.
Natural pearls have a surface appearance - which is lustrous and looks precious. When viewed under magnification it contains discontinuous wavy lines. They are used to make beautiful jewelry items, in decorative items and various other handicrafts. Pearl is found in the regions of Japan, China, Tahiti, Australia, Indonesia, Philippines, USA and Burma.
