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General Care of ornametns

Each piece of jewellery is very delicate so we must have to take care of them. So treat your jewellery with loving care and respect. It will stay young looking like most women. Remember to put your jewellery on after applying make-up and the hairspray and avoid contact with perfume.

Before entering a chlorinated pool remove all ornaments. Remove your jewellery when carrying out cleaning or other chores. Remove all jewellery if you’re contemplating a sauna as it will burn you when it heats up. Cleaning fluids can damage both the metal and the gemstones. Many gemstones are damaged by prolonged exposure to heat. A miss-hit with the hammer could end a beautiful relationship with not just your engagement ring.

Gemstones are identified by gemologists

Gemstones are identified by gemologists. The first characteristic a gemologist uses to identify a gemstone is its chemical composition. Gems are characterized in terms of refractive index, dispersion, specific gravity, hardness, cleavage, fracture, and luster. They may exhibit pleochroism or double refraction. Who describe gems and their characteristics using technical terminology specific to the field of gemology.

Next, many gems are crystals which are classified by their crystal system such as cubic or trigonal or monoclinic. They may have luminescence and a distinctive absorption spectrum. For example, diamonds are made of carbon (C) and rubies of aluminium oxide (Al2O3). Another term used is habit, the form the gem is usually found in. For example diamonds, which have a cubic crystal system, are often found as octahedrons.

A diamond is a form of carbon

A diamond is a form of carbon that was created deep within the core of the earth more than 3 billion years ago and brought to the surface by volcanic eruption. In diamond, each carbon atom is bonded to four other carbon atoms in a tetrahedral structure, like a pyramid.

Each link or bond is the same length, and the tetrahedral formation is therefore completely regular. Theoretically a perfect diamond crystal could be composed of one giant molecule of carbon. After the magma cooled, it solidified into kimberlite, where the precious rough diamond is still found today. It is the strength and regularity of this bonding which makes diamond very hard, non-volatile and resistant to chemical attack.


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Last Updated : 18/10/2019 05:41:46