Diamonds

Diamond is one of the many allotropic forms that can contain carbon, the diamond, in fact, is made from a crystal lattice of carbon atoms arranged in a tetrahedral structure and it is the hardest natural mineral source that is known; its hardness on the Mohs scale (empirical criterion for the evaluation of the hardness of the material) is 10. Due to its hardness, a diamond can only be scratched by other diamonds and is able to keep the polishing for long periods of time. The word diamond comes from the greek "adamas - invincible" a term that had its root in the use of steel, iron and it was only later that Aristotele used it to delineate the precious mineral. The first diamonds were mined more than 2800 years ago in India, but the modern mining industry was born thanks to the discovery of the South African mines in the nineteenth century.

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Pearls

Pearl is the only gem that is born and developed within a living organism. The etymology of the word pearl comes from the Latin "pernula" name that was used to indicate the shell that contained it and whose shape resembles the "leg of pork". A pearl is formed when a foreign body (usually fragments of shell) is introduced into the cavity and stays in the palleale clam (typically the oyster). The clam pearl-with the aim of defending their tissues from the external agent, which is introduced internally, covers the foreign body with layers of nacre. 99% of pearls that you buy in jewelry stores are cultivated. Thanks to the junction inside the pearls clam these tiny fragments of matter epithelial (foreign bodies), trigger the oyster into the process of self-defense mentioned above that leads to the creation of the pearl.

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How to recognize a diamond

To recognize a real diamond from a fake you can do "home-made" test; here are some tests that can be conducted at home without the aid of expensive equipment and without being an expert gemologists and that can be performed when the Brilliant is not embedded in any valuable object.

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