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Glittering
Stones >> Semi
precious stones >> Pearl
Semi Precious Stone Pearl
A pearl is a very hard, rounded secretion formed
inside the shell of certain bivalve mollusks. As a response to
an irritating object inside its shell, the mollusk would deposit
layers of calcium carbonate (CaCO3) in the form of the minerals
aragonite and calcite (crystalline forms of calcium carbonate)
held together by an organic horn-like compound known as conch
Olin.
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HIstorical Facts Of Pearl
| Chemical Composition |
CaCO3 |
| Hardness |
3.5 - 4.0 |
| Density |
2.66 – 2.78+ |
| Ocurrence |
China, Japan |
| Sign of the Zodiac |
Cancer |
| Month of the year |
June |
| Color |
Orange, Pink, white, Gray, Light purple,
Rose, Black, Brown, Gold, Yellow, Silvery, Green, Blue,
Bronze. |
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Precious Stone Pearl
| Pearl Bracelet |
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| Pearl Earring |
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| Pearl Necklace |
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| Pearl Ring |
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