Introduction:

One of the most important organic gems which are used to remove the evil effects of moon and it strengthens the mind force and induces good sleep. Pearls also give good memory, good thinking, accurate decision, cures uterine disorder, heart and eye diseases, diabetes, TB, constipation and hysteria etc. It is good for ladies, as it increases their beauty and facial lustre. Pearl increases sexual strength and makes conjugal happy life. If worn the precious pearl. Pearls is called in bangle language is MUKTA and in Arabic language is LULU. Even in India it is called MOTI, and many other local language names.

Where found:

Bangladeshi pink colour pearls are world famous, but now a day it is not available in Bangladesh due to lack of collection it in proper way. Most of the few quality of natural pearls harvested from the Persian Gulf, Srilanka, the Red sea, and the Philippines; still smallest quantities are collected from the sea off the coast of Venezuela and from the Gulf of California, In the other places, such as the seas of Japan and along the north west coast of Australia, the industry for cultured pearl has now developed top such an extent that the possibility of finding natural pearls as well is disregarded.

One of the most valuable gems is antiquity; pearls are still highly valued today, although not to same extent. Pearls are evaluated according to size, colour, lustre, regularity of form, compactness it mean the more watery, translucent ones are less durable, therefore less valuable.

• Chemical composition: consist of about 92% of Calcium Carbonate (CaCO3), 2% Water, held together by an organic substance of 6%.

• Specific gravity: 2.60-2.78